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1.

The dimensional formula of momentum (p = mv) is:

MLT⁻²

MLT⁻¹

ML²T⁻¹

MT⁻¹

2.

According to Newton's first law, an object keeps its state of rest or uniform motion in a straight line if:

its mass is small

the resultant force on it is zero

it is on the ground

its velocity is small

3.

Momentum is the product of:

mass and acceleration

mass and velocity

force and distance

force and velocity

4.

The unit of momentum is:

N

kg·m/s²

kg·m/s

J

5.

Momentum is a:

scalar quantity

vector quantity

dimensionless quantity

quantity without a unit

6.

A 2 kg body moves at 5 m/s. Its momentum is:

2.5 kg·m/s

7 kg·m/s

10 kg·m/s

25 kg·m/s

7.

Which has the greater momentum: a 1000 kg car at 10 m/s or a 500 kg car at 25 m/s?

The first

The second

They are equal

Cannot be decided

8.

Newton's second law states that the resultant force acting on an object equals the:

mass × velocity

rate of change of its momentum

its weight

its kinetic energy

9.

One newton is equal to:

1 kg·m/s

1 kg·m/s²

1 kg·m²/s²

1 kg/m·s²

10.

The momentum of a 3 kg body changes from 6 to 30 kg·m/s in 4 s. The force is:

6 N

9 N

12 N

36 N

11.

Which statement agrees with Newton's second law?

Acceleration is independent of mass

Acceleration is inversely proportional to force

Acceleration is directly proportional to force and inversely proportional to mass

Acceleration is directly proportional to mass

12.

Newton's third law is expressed by:

ΣF = 0

ΣF ≠ 0

F = ma

F₁ = −F₂

13.

A resultant force of zero acting on a body corresponds to which of Newton's laws?

The first law (a special case of the second)

The third law only

The law of gravitation

None of them

Curriculum

Mathematics

Unit 1

Unit 2

Unit 3

Unit 4

Unit 5

Unit 6

Unit 7

Lesson 1: Momentum, Newtons Three Laws of Motion, Impulse and Energy — Picture questions (exam style)

Quiz finished, well done