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← Topic 3 overviewTOPIC 3 ASSESSMENT

Dynamics

CIE-style questions assess Newton's laws, resultant force, momentum, impulse, terminal velocity and collisions.

Objective question 1

Newton's second law states that resultant force equals:

Objective question 2

Which pair is a Newton's third-law pair?

Objective question 3

The area under a force–time graph gives:

Objective question 4

At terminal velocity:

Objective question 5

An elastic collision conserves:

Structured question 1

A 1200 kg car experiences 3600 N driving force and 1200 N resistance. Calculate its acceleration.

Structured question 2

A 0.20 kg ball changes velocity from +15 to −10 m s⁻¹. Calculate the magnitude of its change in momentum.

Structured question 3

A 3.0 kg trolley at 4.0 m s⁻¹ sticks to a stationary 1.0 kg trolley. Calculate their common velocity.