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Flashcards in Turning Forces And Levers And Gears Deck (17)
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1

What is another name for a turning effect of a force?

A moment

2

A force can make an object turn ______________ or ____________________

Clockwise
Anti-clockwise

3

The turning effect of a force depends on the ___________ from the ________

Distance
Pivot

4

What 3 things do levers need?

Fulcrum
Effort
Load

5

Describe a Class 1 lever

The load and the effort are on the opposite sides of the fulcrum

6

What is an alternative name for the fulcrum?

Pivot

7

Describe a Class 2 lever

The load is between the effort and the fulcrum

8

Describe a Class 3 lever

The effort is between the load and the fulcrum

9

Give an example of a Class 1 lever

See-saw
Scissors
Crowbar

10

Give an example of a Class 2 lever

Wheelbarrow
Nutcracker

11

Give an example of a Class 3 lever

Tweezer
Human jaw

12

When a lever acts as a ________ _____________ it may seem that we're getting more __________ than we started with

Force multiplier
Energy

13

The work done by the ___________ is the same as the work done by the __________

Effort
Load

14

To move a heavy object a short distance, a ________ force moves the lever through a ___________ distance

Small
Longer

15

When 2 or more gears are connected the gear ratio will determine how _______ each cog spins and the ___________ required

Fast
Force

16

What is a gear ratio?

The relative number of teeth on each cog

17

When a gear is turned directly by an adjacent cog it will rotate in the _______________ direction

Opposite