Science Review 8th grade.

What does force mean?

• a push or pull that can change the motion of an object.

• stored energy.

• negative charges.

• a stable subatomic.

Are protons a positive charge or negative charge?

• positive charge.

• negative charge.

Which is a picture of an atom ?

• 
• 
• 

What is speed?

• how fast you accelerate

• how much distance is covered over a period of time

• how far you go

• the change in the location of a object

_____ have the longest wavelengths and lowest frequencies of all electromagnetic waves.

• microwaves

• radio waves

• gamma rays

• ultraviolet

particle with on negative charge.

• neutron

• electron

• proton

• atom

A consumer?

• Eats plants and other animals for energy

• Eats dead plants and animals

What is H2SO4

made up of?

• 2 hydrogen, 1 sulfur, 4 oxygen

• 1 hydrogen, 2 sulfur, 4 oxygen

• 2 hydrogen & 4 sodium

• 1 hydrogen & 6 sodium

Is potential energy stored energy.?

• yes.

• no.

is kinetic energy, energy stating in place?.

• Yes

• NO.