Forces and Simple Machines

Which of the following are examples of non-contact forces?

• friction and motion

• friction and gravity

• inertia and mass

• gravity and magnetism

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

In a car accident, a seat belt helps prevent injuries by applying a force in the opposite direction of the passenger's motion. The seatbelt is used to protect the passenger from

• Buoyancy

• Masses

• Inertia

• Exposure

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

A push or pull on an object is called

• gravity

• force

• weight

• friction

Tags

NGSS.3-PS2-1

NGSS.3-PS2-2

Which simple machine is the man using to get the wheelbarrow up into the truck?

• Lever

• Inclined plane

• Wheel and axle

When you use a simple machine you use_________force.

• Less

• More

All simple machines make work______________.

• Harder

• Easier

This picture shows a ________________.

• Lever

• Wedge

• Pulley

• Wheel and axle

Which is an example of a wedge?

• 
• 
• 
• 

The force between the surface of the wheels and the surface of the ground is called the force of :

• Friction

• Magnetism

• Weight

• Gravity

Select ALL that are Simple Machines?

• Screw

• Wheel & Axle

• Window

• Wedge