How fast does sound travel per second?

• 1 foot

• 1,115 feet

• 2,222 feet

• 4 miles

A wedge __________.

• is a type of animal

• holds things together

• forces things apart

• is a liquid

What is another name for an inclined plane?

When American pioneers traveled across the country using machines that had __________.

• refrigerators

• wheels and axels

• fire

• indoor plumbing

Which of the following would smooth things out so that there would be less friction

• butter

• motor oil

• soap

• all of the other answers

Ancient Egyptians built the pyramids using what type of tool?

• inclined planes

• bulldozers

• Tonka trucks

• electric saw

Which has the most MASS?

• a piece of foam the size of a tennis ball

• a rose the size of a tennis ball

• a rock the size of a tennis ball

• They are all the same

The object in this picture is used to help cranes lift heavy things. What is it?

• ramp

• lever

• wedge

• pulley

Tags

NGSS.MS-PS2-1

How is sound created?

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Which type of motion is at work on this merry-go-round?

• straight line

• rotation

• swing

• mass