A
What is a wheel and axel example
Bike (Teacher decide if response is acceptable)
Name a machine that uses gears
Clock
What is the purpose of a wedge?
to split or cut objects
Name a machine with an incline plane
Ladder
What do gears have?
Teeth
What do gears on a bike change?
Speed
Which part of the lever is the pivot point?
Fulcrum
What simple machine is in a bike?
gear
What do Pulleys lift?
Loads
What simple machine is in a wheelbarrow?
wheel and axel
If the fulcrum is closer to the load on a lever, will it be easier or harder to lift the load?
easier
Name a machine that uses a Pulley
Elevator/ Flag pole etc
Name a type of lever
Seesaw/ Scissors etc
What is reduced by using an inclined plane? effort or load?
Effort
What machine has a spiral inclined plane?
screw
What type of lever is pair of scissors?
first class lever
What type of simple machine is a doorknob an example of?
wheel and axel
What is the mechanical advantage of an inclined plane if the length of the plane is 10 meters and the height is 2 meters?
5
What are compound machines?
Two or more simple machines combined
How does a fixed pulley change force?
changes direction of force
How many simple machines categories are there?
6
This force includes north and south poles
Magnetic force
What simple machine to we use in our school supplies almost daily?
scissors
Who discovered gravity?
Isaac Newton
What force includes positive and negative charges that are jumping?
Static Electricity