8C Final Review 2

Electric current is measured in what unit?

• amps

• volts

• joules

• newtons

What charge does a proton have?

• positive

• negative

• neutral

• it has no charge

"How much mass something has in a certain volume" is the definition for which property of matter?

• pressure

• compressible

• density

• load

Which of the following is not a fluid?

• water

• oxygen

• iron

• honey

What is the name for the turning effect of a force?

• moment

• clockwise

• pivot

• load

How can you increase the pressure of an object?

• increase the surface area

• decrease the force applied

• decrease the surface area

• increase the angle

James uses a spanner to try to turn a bolt. He pushes with a force of 50 N at a distance 0.3 m away from the pivot. What is the moment of the turn?

• 50.3 Nm

• 49.7Nm

• 15 Nm

• 167 Nm

How can you calculate density?

• foce x distance

• mass / volume

• force / area

• mass x area

Maria finds a rock with volume 25 cm^3 and density 3 g/cm^3. What is the mass of the rock?

• 28 g

• 25 g

• 75 g

• 8.3 g

A piece of ebony wood has a mass of 13 g and volume of 50 cm^3, will it float on water?

• yes

• no

• maybe

• I don't know