Pre-Unit 3 Check 1

Front

What type of force is needed to change an object's motion?

Back

Unbalanced Forces are required to change an object's motion.

Front

What force opposes the motion of an object in everyday situations?

Back

Friction opposes the motion of an object in everyday situations.

Front

What is the Normal Force?

Back

The Normal Force is the force that opposes gravity when an object is resting on a surface.

Front

What happens to an object's motion when forces are unbalanced?

Back

When forces on an object are unbalanced, the object accelerates.

Front

What is the definition of Balanced Forces?

Back

Balanced Forces are equal in size and opposite in direction, resulting in no change in motion.

Front

What is Friction?

Back

Friction is a force that opposes the motion of an object.

Front

What is Gravitational Force?

Back

Gravitational Force is the attraction between two masses, such as the Earth and an object.

Front

What is the effect of Gravity on falling objects?

Back

Gravity causes objects to accelerate downwards when they are in free fall.

Front

What is a Free-Body Diagram?

Back

A Free-Body Diagram is a visual representation of all the forces acting on an object.

Front

What is Air Resistance?

Back

Air Resistance is a type of friction that acts against the motion of an object moving through air.