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IVY Tech PHYS 101 Final Exam (Summer 2025) questions with answers, Exams of Physics

Ivy Tech Community College - MunciePhysics

IVY Tech PHYS 101 Final Exam (Summer 2025) questions with answers

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2024/2025

Available from 07/11/2025

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IVY \|Tech \|PHYS \|101 \|Final \|Exam \|(Summer \|
2025) \|questions \|with \|answers
A \|stone \|is \|held \|at \|a \|height \|h \|above \|the \|ground. \|A \|second \|stone \|
with \|four \|times \|the \|mass \|of \|the \|first \|one \|is \|held \|at \|the \|same \|
height. \|The \|gravitational \|potential \|energy \|of \|the \|second \|stone \|
compared \|to \|that \|of \|the \|first \|stone \|is
\|one-fourth \|as \|much. \|
\|one-half \|as \|much. \|
\|twice \|as \|much. \|
\|four \|times \|as \|much. \|
\|the \|same. \|- \|CORRECT \|ANSWERS \|✔✔four \|times \|as \|much.
Three \|cars \|(car \|F, \|car \|G, \|and \|car \|H) \|are \|moving \|with \|the \|same \|
speed \|and \|slam \|on \|their \|brakes. \|The \|most \|massive \|car \|is \|car \|F, \|
and \|the \|least \|massive \|is \|car \|H. \|If \|the \|tires \|of \|all \|three \|cars \|have \|
identical \|coefficients \|of \|kinetic \|friction \|with \|the \|road \|surface, \|which \|
car \|travels \|the \|longest \|distance \|to \|skid \|to \|a \|stop?
\|They \|all \|travel \|the \|same \|distance \|in \|stopping. \|
\|Car \|F \|
\|Car \|G \|
\|Car \|H \|- \|CORRECT \|ANSWERS \|✔✔They \|all \|travel \|the \|same \|distance \|
in \|stopping.
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Download IVY Tech PHYS 101 Final Exam (Summer 2025) questions with answers and more Exams Physics in PDF only on Docsity!

IVY |Tech |PHYS | 101 |Final |Exam |(Summer |

2025) |questions |with |answers

A |stone |is |held |at |a |height |h |above |the |ground. |A |second |stone |

with |four |times |the |mass |of |the |first |one |is |held |at |the |same |

height. |The |gravitational |potential |energy |of |the |second |stone |

compared |to |that |of |the |first |stone |is

|one-fourth |as |much. |

|one-half |as |much. |

|twice |as |much. |

|four |times |as |much. |

|the |same. |- |CORRECT |ANSWERS |✔✔four |times |as |much.

Three |cars |(car |F, |car |G, |and |car |H) |are |moving |with |the |same |

speed |and |slam |on |their |brakes. |The |most |massive |car |is |car |F, |

and |the |least |massive |is |car |H. |If |the |tires |of |all |three |cars |have |

identical |coefficients |of |kinetic |friction |with |the |road |surface, |which |

car |travels |the |longest |distance |to |skid |to |a |stop?

|They |all |travel |the |same |distance |in |stopping. |

|Car |F |

|Car |G |

|Car |H |- |CORRECT |ANSWERS |✔✔They |all |travel |the |same |distance |

in |stopping.

You |throw |a |baseball |straight |up. |Compare |the |sign |of |the |work |

done |by |gravity |while |the |ball |goes |up |with |the |sign |of |the |work |

done |by |gravity |while |it |goes |down.

|The |work |is |positive |on |the |way |up |and |positive |on |the |way |down.

|The |work |is |positive |on |the |way |up |and |negative |on |the |way |

down.

|The |work |is |negative |on |the |way |up |and |positive |on |the |way |

down.

|The |work |is |negative |on |the |way |up |and |on |the |way |down |

because |gravity |is |always |downward. |- |CORRECT |ANSWERS |✔✔The |

work |is |negative |on |the |way |up |and |positive |on |the |way |down.

A |heavy |dart |and |a |light |dart |are |launched |vertically |by |identical |

ideal |springs. |Both |springs |were |initially |compressed |by |the |same |

amount. |There |is |no |significant |air |resistance. |Which |of |the |

following |statements |about |these |darts |are |correct? |(There |could |

be |more |than |one |correct |choice.)

|The |heavy |dart |goes |higher |than |the |light |dart. |

|The |light |dart |goes |higher |than |the |heavy |dart. |

|Both |darts |reach |the |same |maximum |height. |

|At |the |maximum |height, |both |darts |have |the |same |gravitational |

potential |energy.

What |is |the |net |power |needed |to |change |the |speed |of |a |1600-kg |

sport |utility |vehicle |from |15.0 |m/s |to |40.0 |m/s |in |4.00 |seconds?

| 100 |kW |

|10.0 |kW |

| 140 |kW |

|14.0 |kW |

| 275 |kW |- |CORRECT |ANSWERS |✔✔ 275 |kW

A |1500-kg |car |moving |at | 25 |m/s |hits |an |initially |uncompressed |

horizontal |ideal |spring |with |spring |constant |(force |constant) |of |2.0 |

× | 106 |N/m. |What |is |the |maximum |distance |the |spring |compresses?

|0.17 |m |

|0.34 |m |

|0.51 |m |

|0.68 |m |- |CORRECT |ANSWERS |✔✔0.68 |m

How |many |joules |of |energy |are |used |by |a |1.0-hp |motor |that |runs |

for |1.0 |hour? |(1 |hp |= | 746 |W)

|3.6 |kJ |

|2.7 |MJ |

| 45 |kJ |

|4.8 |J |- |CORRECT |ANSWERS |✔✔2.7 |MJ

A |1000-kg |car |is |moving |at | 15 |km/h. |If |a |2000-kg |truck |has | 23 |

times |the |kinetic |energy |of |the |car, |how |fast |is |the |truck |moving?

| 51 |km/h |

| 72 |km/h |

| 61 |km/h |

| 41 |km/h |- |CORRECT |ANSWERS |✔✔ 51 |km/h

Joe |and |Bill |throw |identical |balls |vertically |upward. |Joe |throws |his |

ball |with |an |initial |speed |twice |as |high |as |Bill. |If |there |is |no |air |

resistance, |the |maximum |height |of |Joe's |ball |will |be

|four |times |that |of |Bill's |ball.

|two |times |that |of |Bill's |ball.

|equal |to |that |of |Bill's |ball.

|eight |times |that |of |Bill's |ball.

|roughly |1.4 |times |that |of |Bill's |ball. |- |CORRECT |ANSWERS |✔✔four |

times |that |of |Bill's |ball.

Which |requires |more |work, |increasing |a |car's |speed |from | 0 |mph |to |

30 |mph |or |from | 50 |mph |to | 60 |mph?

| 0 |mph |to | 30 |mph |

| 50 |mph |to | 60 |mph |

If |4.0 |J |of |work |are |performed |in |stretching |an |ideal |spring |with |a |

spring |constant |(force |constant) |of | 2500 |N/m, |by |what |distance |is |

the |spring |stretched?

|3.2 |cm |

|3.2 |m |

|0.3 |cm |

|5.7 |m |

|5.7 |cm |- |CORRECT |ANSWERS |✔✔5.7 |cm

A |small |but |dense |2.0-kg |stone |is |attached |to |one |end |of |a |very |

light |rod |that |is |1.2 |m |long. |The |other |end |of |the |rod |is |attached |to

|a |frictionless |pivot. |The |rod |is |raised |until |it |is |vertical, |with |the |

stone |above |the |pivot. |The |rod |is |released |and |the |stone |moves |in |

a |vertical |circle |with |no |air |resistance. |What |is |the |tension |in |the |

rod |as |the |stone |moves |through |the |bottom |of |the |circle?

| 20 |N |

| 40 |N |

| 60 |N |

| 80 |N |

| 100 |N |- |CORRECT |ANSWERS |✔✔ 100 |N

If |the |work |done |to |stretch |an |ideal |spring |by |4.0 |cm |is |6.0 |J, |what |

is |the |spring |constant |(force |constant) |of |this |spring?

| 300 |N/m |

| 3000 |N/m |

| 3500 |N/m |

| 7500 |N/m |

| 6000 |N/m |- |CORRECT |ANSWERS |✔✔ 7500 |N/m

A |typical |incandescent |light |bulb |consumes | 75 |W |of |power |and |has |

a |mass |of | 30 |g. |You |want |to |save |electrical |energy |by |dropping |

the |bulb |from |a |height |great |enough |so |that |the |kinetic |energy |of |

the |bulb |when |it |reaches |the |floor |will |be |the |same |as |the |energy |

it |took |to |keep |the |bulb |on |for |1.0 |hour. |From |what |height |should |

you |drop |the |bulb, |assuming |no |air |resistance |and |constant |g? |- |

CORRECT |ANSWERS |✔✔ 920 |km

A |firecracker |explodes |in |midair |and |breaks |up |into |many |

fragments. |Which |of |the |following |statements |are |true |regarding |

conditions |immediately |before |and |immediately |after |the |explosion:

I. |The |total |momentum |of |the |fragments |is |equal |to |the |original |

momentum |of |the |firecracker.

II. |The |total |kinetic |energy |of |the |fragments |is |equal |to |the |

original |kinetic |energy |of |the |firecracker.

|Statement |I |only |

|Statement |II |only |

|Both |Statement |I |and |Statement |II |

|The |magnitude |of |the |ball's |momentum |was |the |same |just |before |

and |just |after |the |bounce.

|The |ball's |momentum |was |conserved |during |the |bounce.

|None |of |these |statements |are |correct. |- |CORRECT |ANSWERS |✔✔The

|magnitude |of |the |ball's |momentum |was |the |same |just |before |and |

just |after |the |bounce.

Identical |forces |act |for |the |same |length |of |time |on |two |different |

objects. |The |magnitude |of |the |change |in |momentum |of |the |lighter |

object |is

|smaller |than |the |magnitude |of |the |change |in |momentum |of |the |

larger |mass, |but |not |zero.

|larger |than |the |magnitude |of |the |change |in |momentum |of |the |

larger |mass.

|exactly |equal |to |the |magnitude |of |the |change |in |momentum |of |

the |larger |mass.

|zero. |

|There |is |not |enough |information |to |answer |the |question. |- |

CORRECT |ANSWERS |✔✔exactly |equal |to |the |magnitude |of |the |

change |in |momentum |of |the |larger |mass.

A |2.0-kg |mass |moving |at |5.0 |m/s |suddenly |collides |head-on |with |a |

3.0-kg |mass |at |rest. |If |the |collision |is |perfectly |inelastic, |what |is |the |

speed |of |the |masses |just |after |the |collision?

| 10 |m/s |

|2.5 |m/s |

|2.0 |m/s |

| 0 |m/s, |since |the |collision |is |inelastic |- |CORRECT |ANSWERS |✔✔2.0 |

m/s

A |320-g |air |track |cart |traveling |at |1.25 |m/s |suddenly |collides |

elastically |with |a |stationary |270-g |cart. |What |is |the |speed |of |the |

270-g |cart |just |after |the |collision?

|0.678 |m/s |

|0.106 |m/s |

|1.36 |m/s |

|1.14 |m/s |

|2.72 |m/s |- |CORRECT |ANSWERS |✔✔1.36 |m/s

A |900-kg |car |traveling |30.0° |south |of |east |at |12.0 |m/s |suddenly |

collides |with |a |750-kg |car |traveling |north |at |17.0 |m/s. |The |cars |

stick |together |after |colliding. |What |is |the |speed |of |the |wreckage |

just |after |the |collision?

|7.21 |m/s |

|12.2 |m/s |

|20.4 |m/s |

|25.0 |m/s |

|17.3 |m/s |- |CORRECT |ANSWERS |✔✔7.21 |m/s

bounces |back |to |the |west, |and |the |bowling |ball |moves |very |slowly |

to |the |east. |Which |object |experiences |the |greater |magnitude |

impulse |during |the |collision?

|Neither; |both |experienced |the |same |magnitude |impulse.

|the |Ping-Pong |ball |

|the |bowling |ball |

|It |is |impossible |to |tell |since |the |actual |mass |values |are |not |given.

|It |is |impossible |to |tell |since |the |velocities |after |the |collision |are |

unknown. |- |CORRECT |ANSWERS |✔✔Neither; |both |experienced |the |

same |magnitude |impulse.

Two |objects |of |different |mass |have |equal, |non-zero |kinetic |

energies. |Which |object |has |the |greater |magnitude |momentum?

|the |heavier |object |

|the |lighter |object |

|They |both |have |the |same |magnitude |momentum. |- |CORRECT |

ANSWERS |✔✔the |heavier |object

Two |objects |of |different |masses |have |momentum |of |equal, |non-

zero |magnitude. |Which |object |has |more |kinetic |energy?

|the |heavier |object |

|the |lighter |object |

|They |both |have |the |same |kinetic |energy. |- |CORRECT |ANSWERS |

✔✔the |lighter |object

In |a |collision |between |two |unequal |masses, |which |mass |receives |a |

greater |magnitude |impulse?

|the |larger |mass |

|the |smaller |mass |

|They |receive |equal |impulses. |- |CORRECT |ANSWERS |✔✔They |receive |

equal |impulses

A |railroad |car |collides |with |and |sticks |to |an |identical |railroad |car |

that |is |initially |at |rest. |After |the |collision, |the |kinetic |energy |of |the |

system

|is |the |same |as |before. |

|is |half |as |much |as |before. |

|is |one |third |as |much |as |before. |

|is |one |fourth |as |much |as |before. |

|is |one |quarter |as |much |as |before. |- |CORRECT |ANSWERS |✔✔is |half |

as |much |as |before.

A |550-g |ball |traveling |at |8.0 |m/s |undergoes |a |sudden |head-on |

elastic |collision |with |a |250-g |ball |traveling |toward |it |also |at |

8.0 |m/s. |What |is |the |speed |of |the |250-g |mass |just |after |the |

collision?

| 15 |m/s |

|8.0 |m/s |

different |directions. |What |is |the |angle |between |the |original |and |

final |paths |of |puck |with |mass |m1?

|30° |

|60° |

|90° |

|120° |

|150° |- |CORRECT |ANSWERS |✔✔ 90 °

Which |one |of |the |following |would |be |expected |to |have |the |

smallest |bulk |modulus?

|liquid |mercury |

|liquid |water |

|helium |vapor |

|solid |iron |

|solid |uranium |- |CORRECT |ANSWERS |✔✔helium |vapor

If |an |object |remains |at |rest, |then |the |sum |of |both |the |external |

torques |and |the |external |forces |on |the |object |must |be |zero.

|True |

|False |- |CORRECT |ANSWERS |✔✔True

As |one |stretches |a |metal |wire, |which |condition |is |reached |first?

|the |elastic |limit |

|the |breaking |point |

|the |proportional |limit |- |CORRECT |ANSWERS |✔✔the |proportional |

limit

Two |solid |spheres |are |made |from |the |same |material, |but |one |has |

twice |the |diameter |of |the |other. |Which |sphere |will |have |the |

greater |bulk |modulus?

|the |larger |one |

|the |smaller |one |

|It |will |be |the |same |for |both |spheres. |- |CORRECT |ANSWERS |✔✔It |

will |be |the |same |for |both |spheres.

If |the |sum |of |the |external |forces |on |an |object |is |zero, |then |the |sum

|of |the |external |torques |on |it |must |also |be |zero.

|True |

|False |- |CORRECT |ANSWERS |✔✔False

A |7.0-kg |pipe |is |hung |from |a |steel |wire |that |is |2.5 |m |long |and |has |

a |diameter |of |0.75 |mm. |Young's |modulus |for |steel |is |2.0 |× | 1011 |

N/m2.

(a) |By |what |distance |does |the |wire |stretch?

(b) |If |the |wire |diameter |were |doubled, |what |would |be |the |

stretch? |- |CORRECT |ANSWERS |✔✔a)1.94x10^-3 |m

the |wire |stretch? |Young's |modulus |for |steel |is |2.0 |x | 1011 |Pa. |- |

CORRECT |ANSWERS |✔✔ 35 |mm

A |shear |force |of | 400 |N |is |applied |to |one |face |of |an |aluminum |

cube |having |sides |of | 30 |cm |each. |What |is |the |resulting |

displacement |of |this |face |of |the |cube |if |the |opposite |face |is |held |

fixed? |The |shear |modulus |for |aluminum |is |2.5 |× | 1010 |N/m2.

|1.9 |× |10-8 |m

|4.4 |× |10-8 |m

|5.3 |× |10-8 |m

|8.2 |× |10-8 |m |- |CORRECT |ANSWERS |✔✔5.3 |× |10-8 |m

Two |wires |are |made |out |of |the |same |metal, |but |one |wire |is |twice |

as |long |as |the |other |wire. |Which |wire |will |have |the |greatest |elastic |

modulus?

|the |shorter |wire |

|the |longer |wire |

|It |will |be |the |same |for |both |wires. |- |CORRECT |ANSWERS |✔✔It |will |

be |the |same |for |both |wires.

Tensile |strain |is

|the |ratio |of |the |change |in |length |to |the |original |length.

|the |stress |per |unit |area. |

|the |applied |force |per |unit |area. |

|the |ratio |of |stress |to |elastic |modulus. |- |CORRECT |ANSWERS |✔✔the |

ratio |of |the |change |in |length |to |the |original |length.

When |a |car |is |weighed, |it |is |driven |slowly |on |a |horizontal |floor |

over |a |scale |that |records |a |reading |as |the |front |wheels |go |over |

the |scale, |and |then |records |a |second |reading |as |the |rear |wheels |

go |over |the |scale. |The |weight |of |the |car |is |equal |to

|the |weight |under |the |front |wheels. |

|the |weight |under |the |rear |wheels. |

|the |average |of |the |two |weights. |

|the |sum |of |the |two |weights. |

|the |difference |of |the |two |weights. |- |CORRECT |ANSWERS |✔✔the |

sum |of |the |two |weights.

A |piece |of |iron |sinks |to |the |bottom |of |a |lake |where |the |pressure |is |

21 |times |what |it |is |at |the |surface. |Which |statement |best |describes |

what |happens |to |the |density |of |that |piece |of |iron?

|There |has |been |no |change |in |the |density |of |the |iron.

|Its |density |decreases |slightly. |

|Its |density |increases |slightly. |

|Its |density |becomes | 21 |times |greater |than |what |it |was |at |the |

surface.