Homework Practice

Printable assignment

Final Assessment: Motion and Time

Recall and Core Ideas

Question 1mcq

Two toy cars travel for

10\,s

. Car A covers

20\,m

and Car B covers

50\,m

. Which car is faster?

A.Car B, because it covers more distance in the same time.

B.Car A, because it covers less distance.

C.Both are equally fast because time is equal.

D.Speed cannot be compared when time is equal.

Question 2mcq

Which comparison correctly identifies faster motion?

A.A bus covering less distance in the same time is always faster.

B.A bus covering

80\,km

2\,h

is faster than one covering

60\,km

2\,h

C.Only the size of the vehicle decides speed.

D.Time is never needed to compare motion.

Question 3mcq

A student says, “A bigger object is always faster than a smaller object.” Which example best challenges this idea?

A.A parked truck is larger than a parked bicycle.

B.A table is heavier than a pencil.

C.A bicycle can move faster than a slowly moving bus in traffic.

D.A bus has more wheels than a bicycle.

Question 4mcq

A cyclist covers

120\,m

20\,s

. What is the speed?

2400\,m/s

100\,m/s

140\,m/s

6\,m/s

Question 5mcq

A train moves at

60\,km/h

for

3\,h

. What distance does it cover?

180\,km

20\,km

63\,km

57\,km

Question 6mcq

A car travels

150\,km

50\,km/h

. How much time does it take?

100\,h

3\,h

7500\,h

200\,h

Processes and Observations

Question 7mcq

Which unit is suitable for the speed of a running student in a school ground?

kg

L

m/s

m^2

Question 8mcq

Which speed is greater?

20\,km/h

B.Both are equal because the number is 20.

C.They cannot be compared by conversion.

20\,m/s

Question 9mcq

A student writes speed as

40\,km

. What correction is needed?

A.Speed should include distance per time, such as

40\,km/h

B.Speed has no unit.

C.Speed should be written only in kilograms.

D.Speed is always measured in litres.

Question 10mcq

Why can a pendulum be used to measure time?

A.It changes its mass every swing.

B.It repeats its motion at nearly regular intervals.

C.It stops gravity from acting.

D.It produces electric current every swing.

Question 11mcq

Which is an example of a periodic event useful for measuring time?

A.A stone breaking randomly

B.A leaf falling at any moment

C.The repeated swing of a pendulum

D.A cloud changing shape irregularly

Question 12mcq

In a pendulum activity, a student measures time for 20 oscillations instead of one. Why is this better?

A.It changes the length of the string automatically.

B.It removes the need for a clock.

C.It makes the pendulum non-periodic.

D.It reduces error in measuring a very short time interval.

Applications and Calculations

Question 13mcq

What is one oscillation of a simple pendulum?

A.Motion from one extreme to the other extreme and back to the starting extreme

B.Only motion from the centre to one extreme

C.Only touching the bob once

D.Only the string length of the pendulum

Question 14mcq

A pendulum takes

40\,s

for 20 oscillations. What is its time period?

20\,s

2\,s

60\,s

800\,s

Question 15mcq

In a fair pendulum investigation, which factor should be changed if we want to test the effect of length?

A.The bob, length and release angle all at once

B.The stopwatch after every swing

C.Only the length of the pendulum string

D.The room and the student each trial

Question 16mcq

On a distance-time graph, what does a straight sloping line usually show?

A.An object definitely at rest

B.No time passing

C.Random non-uniform motion only

D.Uniform motion

Question 17mcq

A distance-time graph is horizontal after

5\,s

. What does this part show?

A.The object is at rest.

B.The object is moving faster.

C.The object is moving backward necessarily.

D.The distance is increasing very quickly.

Question 18mcq

Which graph would show non-uniform motion?

A.A straight line through the origin with constant slope

B.A curved distance-time graph

C.A horizontal line showing rest only

D.A table with no distance values

Reasoning and Misconceptions

Question 19mcq

Which situation shows uniform motion?

A.A bus stopping and starting in city traffic

B.A ball rolling down a slope and speeding up

C.A train covering

30\,km

every half hour on a straight track

D.A student walking fast, then slow, then stopping

Question 20mcq

Which statement best describes non-uniform motion?

A.The object never moves.

B.The object covers equal distances in equal times.

C.The object has no position at any time.

D.The object covers unequal distances in equal time intervals.

Question 21mcq

A car covers

10\,m

in the first second,

20\,m

in the second, and

30\,m

in the third. What type of motion is this?

A.Non-uniform motion

B.Uniform motion

C.Rest

D.Periodic motion only

Question 22mcq

A school bus covers

12\,km

30\,min

. Which speed is correct in

km/h

6\,km/h

24\,km/h

12\,km/h

360\,km/h

Question 23mcq

A graph line for cyclist A is steeper than that for cyclist B. What can be concluded?

A.Cyclist A has less time only.

B.Cyclist B must be at rest always.

C.Cyclist A has greater speed.

D.Slope does not tell anything about speed.

Question 24mcq

A student uses

speed = time \div distance

to solve a problem. What is the error?

A.Speed should be calculated as distance plus time.

B.Speed has no relation with distance.

C.Speed is always equal to time only.

D.Speed should be calculated as distance divided by time.