Science 8 Unit 5 Vocab Check

Fill in the blank: ______ is done when a force causes an object to move in the same direction that the force is applied.

• work

• energy

• power

• momentum

Tags

NGSS.MS-PS3-5

Fill in the blank: ______ is how quickly work is done.

• power

• energy

• force

• velocity

Fill in the blank: ______ is the force that the machine applies.

• output force

• input force

• frictional force

• gravitational force

Fill in the blank: ______ is the ratio of output work to input work.

• efficiency

• power

• force

• velocity

Fill in the blank: A ______ is a machine that does work with only one movement.

• simple machine

• complex machine

• electronic device

• hydraulic system

Tags

NGSS.MS-PS2-1

Fill in the blank: A ______ is an inclined plane wrapped around a cylinder.

• screw

• wedge

• lever

• pulley

Fill in the blank: A ______ consists of two circular objects of different sizes that are attached in such a way that they rotate together.

• wheel and axle

• pulley

• lever

• gear

Tags

NGSS.MS-PS2-1

Fill in the blank: A ______ consists of a grooved wheel with a rope or cable wrapped over it.

• pulley

• lever

• gear

• spring