CP Contact Force Unit Test

Front

What is Newton's Second Law of Motion?

Back

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. It can be expressed with the formula F = ma (Force = mass x acceleration).

Front

What is the definition of net force?

Back

Net force is the overall force acting on an object when all the individual forces acting on it are combined. It determines the object's acceleration.

Front

What happens when two objects with different masses push against each other?

Back

The object with greater mass will exert a smaller acceleration compared to the object with lesser mass, causing the lighter object to move away more significantly.

Front

What is energy transfer?

Back

Energy transfer is the process of energy moving from one object or system to another, often resulting in a change in motion or state.

Front

What is the action-reaction principle?

Back

For every action, there is an equal and opposite reaction. This means that forces always occur in pairs.

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion. An object at rest stays at rest, and an object in motion stays in motion unless acted upon by a net force.

Front

How does mass affect acceleration?

Back

According to Newton's Second Law, an increase in mass will result in a decrease in acceleration if the net force remains constant.

Front

What is the role of friction in motion?

Back

Friction is a force that opposes the motion of an object. It acts in the opposite direction to the movement and can slow down or stop the object.

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 the formula for calculating force?

Back

The formula for calculating force is F = ma, where F is force, m is mass, and a is acceleration.