Question 1

transfer of energy when a force makes something move

Accepted Answer

work

Answer

power

Answer

machine

Question 2

force applied by the user of the machine

Accepted Answer

effort force (input force)

Answer

resistance force (output force)

Answer

output distance

Answer

input distance

Question 3

force applied by the machine to do the work

Accepted Answer

resistance force (output force)

Answer

output distance

Answer

effort force (input force)

Answer

input distance

Question 4

ration of resistance force/effort force (how the machines multiplies the input force)

Accepted Answer

mechanical advantage

Answer

efficiency

Answer

input force

Answer

output force

Question 5

the rate at which work is done (measured in watts)

Accepted Answer

power

Answer

efficiency

Answer

horsepower

Answer

work

Question 6

work applied by the user of the machine

Accepted Answer

work input

Answer

work output

Answer

resistance

Question 7

work applied by the machine

Accepted Answer

work output

Answer

work input

Answer

effort

Question 8

work output/work input X 100%

Accepted Answer

efficiency formula

Answer

ideal mechanical advantage formula

Answer

actual mechanical advantage formula

Question 9

work output is always less than work input due to friction therefore efficiency is always less than 100%

Accepted Answer

True

Answer

False

Answer

it depends on the machine

Question 10

a bar that pivots around a point called a fulcrum

Accepted Answer

lever

Answer

wheel& axle

Answer

pulley

Answer

inclined plane

Question 11

See image

Accepted Answer

2nd class lever

Answer

3rd class lever

Answer

1st class lever

Question 12

See image

Accepted Answer

1st class lever

Answer

2nd class lever

Answer

3rd class lever

Question 13

See image

Accepted Answer

3rd class lever

Answer

2nd class lever

Answer

1st class lever

Question 14

a shaft connected to a wheel

Accepted Answer

wheel and axle

Answer

pulley

Answer

inclined plane

Answer

lever

Question 15

sloping surface that reduces the amount of force needed to raise an object

Accepted Answer

inclined plane

Answer

lever

Answer

wheel&axle

Answer

pulley

Question 16

two or more simple machines working together

Accepted Answer

compound machine

Question 17

Example of

Accepted Answer

wheel & axle

Answer

lever

Answer

pulley

Answer

inclined plane

Question 18

Example of

Accepted Answer

inclined plane

Answer

lever

Answer

pulley

Answer

wheel and axle

Question 19

Example of

Accepted Answer

inclined plane

Answer

pulley

Answer

wheel & axle

Answer

lever

Question 20

Example of

Accepted Answer

pully

Answer

inclined plane

Answer

lever

Answer

wheel & axle

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