Force, Motion, and Simple Machines

The bottle top is held in place using which simple machine.

• inclined plane

• wedge

• wheel and axle

• screw

Tags

NGSS.MS-PS2-1

The net force is

• all the friction used to stop the motion of an object

• the total amount of gravity working to pull an object

• the combination of all forces on an object

• an absence of forces between objects

Tags

NGSS.MS-PS2-2

A landscape company needs to spread new soil on a large garden. What compound machine would most likely be used by the landscapers?

• Wheelbarrow

• Scissors

• Bicycle

• Crowbar

A wedge would best be used to

• move a large object from a truck

• split a log

• lift a heavy object

• move an object faster

Which two people are using a compound machine?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS2-1

When two or more machines work together, they become a

• complex machine

• constructed machine

• compound machine

• combined machine

All of the objects above use simple machines made of

• two inclined planes

• a stiff bar attached to a pulley

• a flat surface

• a rod attached to a wheel

A student is riding a skateboard and notices that when wearing tennis shoes, the push is better than when wearing cowboy boots. The student is observing the effects of a force that opposes the motion of an object called

• gravity

• friction

• force

• speed

Firefighters use many tools to help people in need. What is the firefighter using to help open this car door?

• Lever

• Screwdriver

• Inclined plane

• Wedge

Tags

NGSS.MS-PS2-2

Scissors are made by combining which two simple machines?

• Pulley and screw

• Lever and wedge

• Wheel and axle

• Ramp and lever