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

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

2/30

Which of the following does not belong with the others?

3/30

What is the numerical formula for force?

4/30

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

5/30

The inertia of a moving object depends on

6/30

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

7/30

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

8/30

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

9/30

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

10/30

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

11/30

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

12/30

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

13/30

What is acceleration?

14/30

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

15/30

Which of the following is an example of accelerated motion?

16/30

What is the SI unit of momentum?

17/30

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

18/30

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

19/30

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

20/30

Rocket works on the principle of conservation of

21/30

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

22/30

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

23/30

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

24/30

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

25/30

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

26/30

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

27/30

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

28/30

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

29/30

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

30/30

Class 9 | Laws Of Motion

1 / 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

2 / 30

What is the SI unit of momentum?

3 / 30

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

4 / 30

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

5 / 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

6 / 30

Rocket works on the principle of conservation of

7 / 30

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

8 / 30

What is acceleration?

9 / 30

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

10 / 30

The inertia of a moving object depends on

11 / 30

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

12 / 30

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

13 / 30

Which of the following does not belong with the others?

14 / 30

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

15 / 30

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

16 / 30

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

17 / 30

What is the numerical formula for force?

18 / 30

Retardation means ………….. acceleration.

19 / 30

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

20 / 30

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

21 / 30

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

22 / 30

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

23 / 30

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

24 / 30

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

25 / 30

Which of the following is an example of accelerated motion?

26 / 30

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

27 / 30

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

28 / 30

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

29 / 30

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

30 / 30

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

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