MR MATTHEW 8th grade science review #7

Look at the following set of numbers and give the AVERAGE:  1,2,3,5,5,8

• 4
• 3
• 5
• 24

Which property of matter causes an object to stay at rest unless acted upon by a force?

• Fritction

• Gravity

• Inertia

• Mass

A hockey puck is traveling on a frictionless surface. Which statement best describes the motion of the hockey puck?

• the hockey puck will slow down

• the hockey puck will travel in a curved path

• the hockey puck will speed up

• the hockey puck will continue to travel at a constant speed until it hits something

Tags

NGSS.MS-PS2-2

A student drops a baseball and a feather from a third-floor window. Which force explains why the baseball hits the ground before the feather?

• air resistance

• gravity

• mass

• velocity

Tags

NGSS.MS-PS2-4

What force keeps the planets in their orbit around the sun?

• electricity

• friction

• gravity

• magnetism

Tags

NGSS.MS-PS2-4

NGSS.MS-ESS1-1

NGSS.MS-ESS1-2

What are the two main types of mechanical waves?

• amplitude and frequency

• electromagnetic and mechanical

• longitudinal and transverse

• sound and light

The only waves that can travel through space are:

• chemical waves

• electromagnetic waves

• mechanical waves

• ocean waves

Which color absorbs all wavelengths of light?

• black

• blue

• red

• white

Which process is the burning of a fuel to change chemical energy into thermal energy?

• combustion

• energy

• electricity

• heat

Which scientific law describes what happens to the total amount of energy in a closed system?

• Law of Transformation of Energy

• Law of Conservation of Energy

• Law of Absorption of Energy

• Law of Creation of Energy

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5