Force, Motion and Simple Machines Major Review

What is a simple machine that is like an inclined plane wrapped around a cylinder?

• Lever

• Pulley

• Wedge

• Screw

Which simple machine helps us split things apart by concentrating force on a small area?

• Lever

• Pulley

• Wedge

• Wheel and Axle

What is a stiff bar that rotates on a pivot point called a fulcrum?

• Screw

• Lever

• Inclined Plane

• Pulley

What is a wheel with a groove that a rope or belt moves along?

• Lever

• Pulley

• Screw

• Wedge

What type of simple machine is commonly used in flagpoles, blinds, and elevators?

• Screw

• Inclined Plane

• Wheel and Axle

• Pulley

What is a sharp object with a pointed edge that helps to split things apart?

• Lever

• Screw

• Wedge

• Inclined Plane

Select all, force can affect:

• The speed of an object

• The direction of an object

• The size of an object

What happens when a force is applied to an object?

• The object always stops moving

• The object always starts moving

• The object may change its speed or direction of motion

Which of the following is an example of a contact force?

• Gravity

• Magnetism

• Friction

What is friction?

• A force that attracts objects to each other

• A force that repels objects from each other

• A force that occurs when two objects rub against each other