Levers

Question 1

Mechanical advantage

Answer 1

The ratio of force produced (output) compared to force applied (input)
Load (N) divided by effort (N)

Question 2

Levers provide mechanical advantage

Answer 2

Levers make lifting or applying pressure easier

Question 3

Effort

Answer 3

The amount of force applied by the user (input)

Question 4

Fulcrum

Answer 4

The point that the lever pivots around

Question 5

Load

Answer 5

The force that is needed to lift a weight (the output force)

Question 6

First class lever

Answer 6

Effort, Fulcrum, Load
EFL
Examples: scissors, seesaw

Question 7

Second class lever

Answer 7

Effort, Load, Fulcrum
ELF
wheelbarrow

Question 8

Third class lever

Answer 8

Fulcrum, Effort, Load

Fishing rod, tweezers

Question 9

Types of motion

Answer 9

Linear- straight
Rotary- circle
Reciprocating- up and down
Oscillating- curved backwards and forwards

Question 10

Load equation triangle

Answer 10

Mechanical advantage x effort

Question 11

Levers are used to

Answer 11

Give a greater force/power than the effort placed in

Question 12

How to increase the mechanical advantage

Answer 12

Make distance from effort to fulcrum longer than the distance from load to fulcrum