GIVING BRAINLIEST
_____ is the use of force to move or change the position or motion of an object.

Work

Acceleration

Friction

Inertia


4.
Choose the best answer.

A(n) _____ is the point that a lever pivots.

bar

pulley

wheel and axle

fulcrum


5.
Choose the best answer.

A(n) _____ is a machine that makes work easier and has no or few moving parts.

complex machine

compound machine

simple machine

easy machine


6.
Choose the best answer.

A(n) _____ is made of two or more simple machines.

complex machine

scientific machine

compound machine

electric machine


7.
Which of these is an example of work being done?

A child pushes a toy car across the floor.

A woman opens a door.

A soccer player hits a ball in the air with his head, and its direction changes.

All of these


8.
Choose the best answer.

A(n) _____ is made of a round shape that rolls and a rod that it turns around.

wheel and axle

fulcrum

pulley

lever


9.
Choose the best answer.

A(n) _____ is made of a bar that pivots at a fixed point.

lever

wheel and axle

pulley

fulcrum


10.
Choose the best answer.

A(n) _____ is an inclined plane wrapped around a post.

lever

screw

wedge

pulley


11.
Choose the best answer.

A(n) _____ is two inclined planes placed back to back.

wedge

pulley

screw

lever


12.
Choose the best answer.

A(n) _____ looks like a ramp.

screw

inclined plane

wedge

pulley


13.