Homework Practice

Printable assignment

Motion and Time: Practice 2

Processes and Observations

Question 1mcq

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 2mcq

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.

Question 3mcq

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 4mcq

A pendulum takes

40\,s

for 20 oscillations. What is its time period?

20\,s

2\,s

60\,s

800\,s

Question 5mcq

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

Reasoning Practice

Question 6mcq

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 7mcq

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 8mcq

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

Question 9mcq

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 10mcq

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.