Motion and Time: Practice 1 | Homework Practice

Quick Concepts

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

in

2\,h

is faster than one covering

60\,km

in

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

in

20\,s

. What is the speed?

A.

2400\,m/s

B.

100\,m/s

C.

140\,m/s

D.

6\,m/s

Question 5mcq

A train moves at

60\,km/h

for

3\,h

. What distance does it cover?

A.

180\,km

B.

20\,km

C.

63\,km

D.

57\,km

Apply and Check

Question 6mcq

A car travels

150\,km

at

50\,km/h

. How much time does it take?

A.

100\,h

B.

3\,h

C.

7500\,h

D.

200\,h

Question 7mcq

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

A.

kg

B.

L

C.

m/s

D.

m^2

Question 8mcq

Which speed is greater?

A.

20\,km/h

B.Both are equal because the number is 20.

C.They cannot be compared by conversion.

D.

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.