Forces Test

Front

What is the net force on any object in equilibrium?

Back

The net force is zero.

Front

How do you calculate acceleration when a force is applied?

Back

Acceleration (a) can be calculated using the formula: a = F/m, where F is the force applied and m is the mass of the object.

Front

What is the mass of an object if a force of 800 N results in an acceleration of 200 m/s²?

Back

Mass (m) = Force (F) / Acceleration (a) = 800 N / 200 m/s² = 4 kg.

Front

What does friction do to the motion of an object?

Back

Friction opposes the motion of an object.

Front

What is Newton's second law of motion?

Back

Newton's second law states that the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass.

Front

If a 50 kg crate is stopped by a force of 200 N, what is the acceleration?

Back

The acceleration is 4 m/s².

Front

Why does a cannon have a smaller acceleration than a cannonball when fired?

Back

The cannon is more massive than the cannonball.

Front

What is the relationship between force, mass, and acceleration?

Back

Force = Mass × Acceleration (F = m × a).

Front

What happens to the net force when multiple forces act on an object in opposite directions?

Back

The net force is the difference between the forces acting in opposite directions.

Front

What is the effect of increasing mass on acceleration if the force remains constant?

Back

Increasing mass will decrease acceleration.