Forces and Motion

Front

What is a force?

Back

A force is a push or pull on an object that can cause it to move, stop, or change direction.

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Front

How does mass affect motion?

Back

The greater the mass of an object, the greater the effect a force will have on it.

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Front

What is speed?

Back

Speed is the distance an object travels per unit of time, often measured in miles per hour (mph) or meters per second (m/s).

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Front

What is Newton's 1st 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 2nd 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).

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Front

What is Newton's 3rd Law of Motion?

Back

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

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Front

What is inertia?

Back

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

Front

What is acceleration?

Back

Acceleration is the rate at which an object changes its velocity, which can be an increase or decrease in speed.

Front

What is the difference between speed and velocity?

Back

Speed is a scalar quantity that refers to how fast an object is moving, while velocity is a vector quantity that includes both speed and direction.

Front

What is a seatbelt's role in a car?

Back

A seatbelt restrains the occupant of a vehicle during a collision, preventing them from being thrown forward due to inertia.