5th Grade PS.5.2.1

Front

What is friction?

Back

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

Front

How does increasing friction affect the motion of a moving object?

Back

Increasing friction causes the object to slow down.

Front

What is mass?

Back

Mass is the amount of matter in an object, usually measured in grams or kilograms.

Front

How does mass affect the speed of a rolling ball?

Back

Increasing the mass of the ball generally makes it harder to accelerate, affecting its speed.

Front

What is gravity?

Back

Gravity is a force that pulls objects toward each other, such as the Earth pulling objects toward its center.

Front

What is an example of gravity as a non-contact force?

Back

A ball falling from a height demonstrates gravity as a non-contact force.

Front

What is the role of friction on different surfaces?

Back

Friction varies on different surfaces; for example, a toy car moves slower on a carpet than on a smooth wooden floor due to higher friction on the carpet.

Front

What happens to a soccer ball when it rolls across grass?

Back

The soccer ball slows down due to the friction between the ball and the grass.

Front

What is air resistance?

Back

Air resistance is a force that opposes the motion of an object moving through the air.

Front

What is the difference between contact and non-contact forces?

Back

Contact forces require physical contact between objects, while non-contact forces act at a distance, like gravity.