Force and motion

What is a force?

• Something that slows down motion

• Something that has no effect on motion

• Something that stops motion

• Something that causes change in motion

What is friction?

• A force that changes the direction of motion

• A force that has no effect on motion

• A force that speeds up motion

• A force that works against motion as surfaces rub each other

What happens to the speed of a cart when the fan force is set to Low?

• The speed decreases

• The speed increases

• The speed becomes zero

• The speed remains the same

What causes an object to slow down after no longer being pushed?

• Magnetism

• Friction

• Electricity

• Gravity

Which surface in the Gizmo has the most friction?

• No Friction

• Metal

• Cement

• Wood

What pattern do you see in the position data after the fan is turned off?

• The position decreases

• The position fluctuates

• The position increases

• The position remains the same

How is the final speed of the cart related to the pattern in the position data?

• The final speed is not related to the position pattern

• The final speed is inversely proportional to the position pattern

• The final speed is equal to the position pattern

• The final speed is directly proportional to the position pattern

What pattern do you see in the speed data after the fan is turned off?

• The speed remains the same

• The speed fluctuates

• The speed increases

• The speed decreases

How does the bar graph (or line graph) show the pattern you found?

• It shows a constant line

• It shows a fluctuating line

• It shows an increasing line

• It shows a decreasing line

If there is no force, what happens to the motion of the object?

• The motion increases

• The motion decreases

• The motion remains the same

• The motion becomes zero