Ch. 4 Test Review

Front

What is the formula to calculate force?

Back

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

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion or rest.

Front

What is Newton's Third Law of Motion?

Back

For every action, there is an equal and opposite reaction.

Front

What is a field force?

Back

A field force is a force that acts at a distance, such as gravitational, electric, or magnetic forces.

Front

What is the unit of force in the International System of Units (SI)?

Back

The unit of force is the Newton (N).

Front

How do you calculate the weight of an object?

Back

Weight (W) = Mass (m) × Gravitational acceleration (g), where g is approximately 9.81 m/s² on Earth.

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, while weight is the force exerted by gravity on that mass.

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object with respect to time.

Front

What is the role of friction in motion?

Back

Friction is a force that opposes the relative motion of two surfaces in contact.

Front

What is momentum?

Back

Momentum is the product of an object's mass and its velocity (p = m × v).