Question 1

When a force acts on an object in the direction the object moves.

Accepted Answer

Work

Question 2

A push or a pull that could cause acceleration.

Accepted Answer

Force

Question 3

the unit for work that is equal to a Newton times a meter

Accepted Answer

Joule

Question 4

the rate of doing work, work divided by time

Accepted Answer

Power

Question 5

the unit for power that is equal to one Newton times one meter divided by one second

Accepted Answer

Watt

Question 6

the force exerted on the machine to make it work

Accepted Answer

Input force

Question 7

the force exerted by the machine as it works

Accepted Answer

output force

Question 8

how much easier a machine makes work, related to the input and output forces exerted

Accepted Answer

mechanical advantage

Question 9

how much work is useful for a machine, found by work output divided by work input

Accepted Answer

efficiency

Question 10

a simple machine like a ramp

Accepted Answer

inclined plane

Question 11

a simple machine like a teeter-totter

Accepted Answer

lever

Question 12

a simple machine that consists of two different sized circles that move together

Accepted Answer

wheel and axle

Question 13

a simple machine that has a rope fitted to a groove of a wheel

Accepted Answer

pulley

Question 14

a simple machine like the sharp part of an axe

Accepted Answer

wedge

Question 15

the part of a lever that doesn't move

Accepted Answer

fulcrum

Question 16

the unit for force

Accepted Answer

Newton

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