Forces and Motion Test review

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object. It occurs when an object speeds up, slows down, or changes direction.

Front

What is weight?

Back

Weight is the measure of the pull of gravity on an object, typically measured in newtons (N).

Front

How do you calculate force?

Back

Force can be calculated using the formula: Force (F) = mass (m) × acceleration (a).

Front

What happens when two forces of equal magnitude act in opposite directions?

Back

The object will not move at all, as the forces cancel each other out.

Front

What is the Law of Inertia?

Back

The Law of Inertia states that an object at rest will stay at rest, and an object in motion will stay in motion at a constant velocity unless acted upon by a net external force.

Front

What is the Law of Force and Acceleration?

Back

The Law of Force and Acceleration (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

What is the Law of Action-Reaction?

Back

The Law of Action-Reaction (Newton's Third Law) states that for every action, there is an equal and opposite reaction.

Front

What is speed?

Back

Speed is the distance traveled per unit of time, typically measured in meters per second (m/s).

Front

What is velocity?

Back

Velocity is the speed of an object in a specific direction.

Front

If a skateboard has a mass of 3 kg and accelerates at 5 m/s², what is the force applied?

Back

The force applied is 15 N (using F = m × a).