Forces 5.7A

Front

What is a force?

Back

A force is a push or pull that can change the motion of an object.

Front

What is gravity?

Back

Gravity is the force that pulls objects toward the Earth.

Front

What is friction?

Back

Friction is a force that opposes the motion of an object when it is in contact with another surface.

Front

What is air resistance?

Back

Air resistance is a type of friction that acts on objects as they move through the air.

Front

What does it mean for forces to be equal?

Back

Equal forces mean that the forces acting on an object are balanced, resulting in no change in motion.

Front

What does it mean for forces to be unequal?

Back

Unequal forces mean that the forces acting on an object are unbalanced, resulting in a change in motion.

Front

How do you calculate speed?

Back

Speed is calculated by dividing the distance traveled by the time taken.

Front

What is the role of a hypothesis in an experiment?

Back

A hypothesis is a testable statement that predicts the outcome of an experiment.

Front

What is an example of a testable question?

Back

Does increasing the weight of a paper airplane affect how far it flies?

Front

What material is best for preventing sliding on an incline?

Back

A rubber mat is best for preventing sliding because it provides more friction.