Physics Concepts Quiz

What is an axle?

• A surface that is slightly higher on one end

• A rod or shaft to which wheels can be attached

• A force between objects that slows down motion

• Anything you change in an experiment

What does the term "slope" refer to?

• A rod or shaft to which wheels can be attached

• A surface that is slightly higher on one end

• When two or more objects work together

• A force between objects that slows down motion

What is friction?

• A rod or shaft to which wheels can be attached

• A surface that is slightly higher on one end

• A force between objects that are touching each other that slows down the motion of the object

• Anything you change in an experiment

What is a variable?

• A rod or shaft to which wheels can be attached

• A surface that is slightly higher on one end

• When two or more objects work together in a meaningful way

• Anything you change in an experiment that might affect the outcome

What is the effect of having two wheels of different sizes on a system?

• The system rolls straight

• The system rolls towards the smaller wheel

• The system rolls in a zigzag pattern

• The system does not move

What is the role of an axle in a wheel-and-axle system?

• To slow down the system

• To connect the wheels

• To change the color of the wheels

• To make the system heavier

What happens when the axle is centered on the wheel?

• The system rolls in a zigzag pattern

• The system rolls towards the smaller wheel

• The system rolls straight

• The system does not move

Which of the following best describes a slope?

• A flat surface

• A surface that is slightly higher on one end

• A surface with holes

• A surface with bumps

What is the main purpose of a system in motion?

• To stop objects from moving

• To work together in a meaningful way

• To change the color of objects

• To make objects heavier

Why does the cup roll to one side?

• Because it is perfectly balanced.

• Because the larger end pushes it to the side.

• Because it is too heavy.

• Because it is too light.