Review

What variable affects speed?

• distance
• mass
• volume

The longer the inclined plane, the ___________________ to move the object

• the less input force you need
• the more input force you need
• the more output force you need
• the less output force you need

Tags

NGSS.MS-PS2-4

NGSS.MS-PS3-2

Friction acts in a direction_______ to the direction of an object's motion.

• unrelated
• equal
• opposite
• perpendicular

The density of a particular substance:

• depends on the volume
• is always the same
• depends on the mass
• is always changing

What is the amount of space an object takes up?

• density
• mass
• matter
• volume

Is "sugar dissolves in water" a chemical or physical change?

• Chemical change
• Physical change

Friction wears away the treads on a tire after miles of driving.  Physical or chemical change?

• Chemical change
• Physical change

What is this graph showing?

• Constant Speed
• Acceleration (speeding up)
• Deceleration (slowing down)
• No motion

What is the unit for density?

• g/cm³
• g/mL
• g/cm³ OR g/mL
• mL/g

On which surface would friction be the greatest?

• carpet
• ice
• snow
• water