Mock Exam Quarter 4

The force you apply to a simple machine is called the force

• effort/input

• output

• Fulcrum

• another machine

What type of Machine is in the picture ?

• wheel and axle

• Pulley

• see- saw

• scissor

What type of machine is in the picture ?

• Pulley

• Wheel and axle

• lever

• bicycle

You are going out on a very hot day, what color shirt is the best to keep you cooler ?

• white

• black

• brown

• grey

a black t-shirt would make me feel much cooler in sunny weather, because it reflects light

• True

• false

the type of lever in the picture is ?

• 1st class

• 3rd class

• 2nd class

Using a Screwdriver to twist out a screw, are actually 2 simple machines. What are they?

• screw( inclined plane) and pulley

• axle and wheel

• Inclined plane(screw) and wheel and axle

• lever and scissor

What would happen if you were to put an inflated balloon in the freezer?

• Cold makes things contract, or get smaller, so the air inside the balloon would expand, and the balloon itself would become larger

• The balloon would be the same size when it comes out of the freezer.

• Cold makes things get bigger, so the air inside the balloon would be expanding, and the balloon itself remain the same size

• Cold makes things contract,, so the air inside the balloon would be compressed, and the balloon itself would become smaller.

What type of Machine is in the picture?

• axle and wheel

• pulley

• lever

• scissor

How much is the mechanical advantage does the machine in the picture have that applies to your effort? (Hint count the ropes closest to the load)

• 1

• 2

• 3

• 4