Energy Forces and Motion

When something changes position it is in...

• acceleration

• Force

• Motion

• friction

What is friction?

• a substance

• a solid

• a liquid

• a force

__________ can be wither a push or a pull.

• force

• operation

• speed

• motion

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

What is an example of a force producing heat?

• two sticks getting warm when rubbed together

• an orange falling from a tree

• a boy falling from a bicycle

• a doorbell ringing when a switch is pushed

Tags

NGSS.MS-PS1-4

Why do two surfaces get warmed when they are rubbed together?

• The surfaces adsorb energy from the air

• Friction changes the energy of motion to heat energy

• Moving objects produce heat energy

• energy is transferred between the two surfaces

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-5

Which force produces energy as heat?

• pull

• friction

• gravity

• magnetic

If you push a box of books across the floor...

• the sun will warm it up

• the books will evaporate

• the books will spontaneously burst into flames

• the friction of it sliding against the floor will heat the bottom of the box

Tags

NGSS.MS-PS1-4

A truck goes down a ramp four times: in 5 minutes, 6 minutes, 9 minutes, then 12 minutes. Which time was the truck the fastest

• 5 minutes

• 6 minutes

• 9 minutes

• 12 minutes

The pull of gravity on Earth is caused by...

• Earth's orbit around the sun

• air pressure

• the mass of earth

• water spouts

Tags

NGSS.MS-PS2-4

Which of the above is true? There may be more than one right answer...

• an object that moves first will be the fastest no matter what

• The bigger object will always be the fastest

• The object that takes the most time is slower

• The object that takes the least amount of time is fastest

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5