# Phy Revision on Kinematics_Dynamics 1(MFSSP1_17MYE)

## Quiz by Jessica Lew

### Our brand new solo games combine with your quiz, on the same screen

Correct quiz answers unlock more play!

8 questions
• Q1

The diagram below shows a container of water with one trapped air bubble. The container is in a forward motion with a constant velocity. What will be the motion of the air bubble if the container is stopped suddenly?

The air bubble will remain in the original position.

The air bubble will move in the backward direction.

The air bubble will move in the forward direction.

The air bubble will remain in the original position.

60s
• Q2

A hammer is thrown out of a space shuttle into the outer space. Which of the following statements is true?

The hammer will continue to move with a uniform velocity

The hammer will continue to move with an increasing velocity.

The hammer will continue to move with a decreasing velocity.

The hammer will continue to move with a uniform acceleration.

60s
• Q3

A coin and a feather are released from rest in vacuum as shown in the diagram

A list of deductions is presented below.

I     The masses of the coin and the feather are identical.

II    The coin and the feather fall with the same acceleration in vacuum.

III   The forces acting on the coin and the feather in the vacuum are identical.

I and III

I only

II only

II and III

60s
• Q4

Gary walks along a tightrope carrying a pole. Why does he need to carry the pole?

To raise his centre of gravity.

To lower the position of centre of gravity below the pivot

To reduce his pressure on the rope.

60s
• Q5

Jason pulled a 3.0 kg block of wood with a force of 15 N, producing an acceleration of 2.0 m/s2. What force should be applied to pull the block of wood at a constant speed of 4.0 m/s on the same horizontal ground?

15 N

6 N

21 N

9 N

120s
• Q6

In a zoo performance, an elephant uses a force of 250 N to pull a log of mass 10kg across a rough ground against a frictional force F. The acceleration of the log is 1.0 m/s2. What is the value of F?

240 N

25 N

250 N

50 N

120s
• Q7

Which point shows the centre of gravity of the object?

A

D

B

C

120s
• Q8

A non-uniform rod is balanced as shown in the diagram below. Given that the centre of gravity of the rod is 14.0 cm from the end marked A, what is the mass of the rod?

53.5 g

114 g

64.0 g

100 g

120s

Teachers give this quiz to your class