Newton's Laws Test Review Flashcardizz

Front

What is Newton's First Law of Motion?

Back

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

Front

What is Newton's Second Law of Motion?

Back

The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass. (F = ma)

Front

What is Newton's Third Law of Motion?

Back

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

Front

How do you calculate weight?

Back

Weight is calculated using the formula: Weight (W) = mass (m) × gravitational acceleration (g). On Earth, g is approximately 9.8 m/s².

Front

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

Back

The unit of force is the Newton (N).

Front

If a 25 kg crate is stopped by a 400 N force, what is its acceleration?

Back

The acceleration is 16 m/s².

Front

What happens to the acceleration of an object if its mass is tripled while the force remains the same?

Back

The acceleration will be 1/3 as large.

Front

In a collision, which object experiences a greater force: a car or a bug?

Back

The forces are equal on both the car and the bug.

Front

What is kinetic friction?

Back

Kinetic friction is the force that opposes the motion of two surfaces sliding past each other.

Front

During which intervals is kinetic friction acting on a toy car that is pushed and released?

Back

Kinetic friction is acting during intervals Y and Z.