Section 4: Newton's Laws Flashcard Review

Front

What happens to the acceleration of a car if its mass increases while the force remains the same?

Back

The acceleration decreases (inversely proportional).

Front

What is the relationship between mass and inertia?

Back

An object with more mass will have more inertia.

Front

Calculate the acceleration when a force of 45 N acts on a 6 kg mass. (Use a = F / m)

Back

7.5 m/s².

Front

What property describes an object's resistance to changes in motion and is related to mass?

Back

Inertia.

Front

What is the mass of a shopping cart if a 24 N force is exerted on it and it accelerates at 4 m/s²? (Use m = F / a)

Back

6 kg.

Front

Define Newton's First Law of Motion.

Back

An object at rest stays at rest, and an object in motion stays in motion unless acted upon by a net external force.

Front

What is the formula for calculating force?

Back

Force (F) = mass (m) × acceleration (a).

Front

Explain the concept of inertia in your own words.

Back

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

Front

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

Back

Newton (N).

Front

If the net force acting on an object is zero, what can be said about its motion?

Back

The object is in equilibrium and will not change its state of motion.