Class 9 | Laws Of Motion

Flash Card

Father has mass 60 kg and the mass of his son is 30 kg. The ratio of the inertia of the father to his child is

1/30

When a moving body comes to rest, then its initial velocity is taken as zero.

2/30

Which of the following is an example of accelerated motion?

3/30

The ............... is proportional to the applied force and it occurs in the direction of the force.

4/30

Retardation means .............. acceleration.

5/30

What is acceleration?

6/30

................... is the relation between displacement and time.

7/30

The unit of velocity in the SI system is .................... .

8/30

v2 = u2 + 2as is the relation between ............... and ............. .

9/30

............... is an example of positive acceleration.

10/30

A body at rest explodes into two equal parts. Then, they move with

11/30

According to Newton's first law of motion, an object will remain at rest or in uniform motion unless acted upon by:

12/30

What is the numerical formula for force?

13/30

If the velocity changes by equal amounts in equal time intervals, the object is said to be in ................. .

14/30

If an object is moving with a uniform velocity ........................ .

15/30

An object continues to remain at rest or in a state of uniform motion along a straight line unless an .............. acts on it.

16/30

Which of the following does not belong with the others?

17/30

Even if the displacement of an object is zero, the actual distance traversed by it...................

18/30

One Newton is defined as the force which gives a mass of 1 kg and acceleration of............ .

19/30

The tendency of a body to resist .................. acceleration is called .

20/30

Rocket works on the principle of conservation of

21/30

A student is able to move a block of mass 2 kg with minimum force of 1N. The force of friction between the object and the surface will be

22/30

What is the SI unit of momentum?

23/30

The force necessary to cause an acceleration of 1 m/s2 in an object of mass 1 kg is called .................. .

24/30

The inertia of a moving object depends on

25/30

The displacement that occurs in unit time is called ................... .

26/30

The linear momentum of a system remains constant if no ............ force acts on it.

27/30

In a collision ................. is always conserved.

28/30

If a car is traveling at a constant speed around a curve, what is responsible for changing its direction?

29/30

When body is performing uniform circular motion, its ................... changes at every point.

30/30

Class 9 | Laws Of Motion

1 / 30

If an object is moving with a uniform velocity …………………… .

2 / 30

The …………… is proportional to the applied force and it occurs in the direction of the force.

3 / 30

…………… is an example of positive acceleration.

4 / 30

The linear momentum of a system remains constant if no ………… force acts on it.

5 / 30

The unit of velocity in the SI system is ……………….. .

6 / 30

The force necessary to cause an acceleration of 1 m/s2 in an object of mass 1 kg is called ……………… .

7 / 30

An object continues to remain at rest or in a state of uniform motion along a straight line unless an ………….. acts on it.

8 / 30

Retardation means ………….. acceleration.

9 / 30

If a car is traveling at a constant speed around a curve, what is responsible for changing its direction?

10 / 30

………………. is the relation between displacement and time.

11 / 30

Rocket works on the principle of conservation of

12 / 30

If the velocity changes by equal amounts in equal time intervals, the object is said to be in …………….. .

13 / 30

When body is performing uniform circular motion, its ………………. changes at every point.

14 / 30

One Newton is defined as the force which gives a mass of 1 kg and acceleration of………… .

15 / 30

A body at rest explodes into two equal parts. Then, they move with

16 / 30

Which of the following is an example of accelerated motion?

17 / 30

Which of the following does not belong with the others?

18 / 30

When a moving body comes to rest, then its initial velocity is taken as zero.

19 / 30

Even if the displacement of an object is zero, the actual distance traversed by it……………….

20 / 30

The inertia of a moving object depends on

21 / 30

In a collision …………….. is always conserved.

22 / 30

The tendency of a body to resist ……………… acceleration is called .

23 / 30

v2 = u2 + 2as is the relation between …………… and …………. .

24 / 30

What is the numerical formula for force?

25 / 30

The displacement that occurs in unit time is called ………………. .

26 / 30

What is acceleration?

27 / 30

Father has mass 60 kg and the mass of his son is 30 kg. The ratio of the inertia of the father to his child is

28 / 30

According to Newton’s first law of motion, an object will remain at rest or in uniform motion unless acted upon by:

29 / 30

What is the SI unit of momentum?

30 / 30

A student is able to move a block of mass 2 kg with minimum force of 1N. The force of friction between the object and the surface will be

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