Definitions
What is an incline plane?
A tilted surface that has one end higher than other. It helps move heavy loads up or down.
What type of simple machine pulls up an elevator?
A pulley
If the incline plane is steeper the work is _______.
Harder.
What simple machine can I use to help someone in a wheel chair get up into a higher building.
An incline plane or ramp.
What is a wedge?
A piece of material that has one thick end and one thin edge that is used to separate or secure something.
What type of simple machine chops wood?
A wedge.
A tall fulcrum allows for the pom pom to be launched _______.
Further.
A lever is a board or bar that is moved on a ________.
Fulcrum.
What is a pulley?
A wheel with grooved rim around which holds a cord. It acts to change the direction of the force applied to the cord. It is used to raise heavy weights.
What simple machine would you use to get items onto a moving truck?
An incline plane.
If I turn a gear to the right the item on the gear turns _________.
The pulley uses a rope and a ________ to lift a load.
Wheel.
What is a lever?
A bar on a fulcrum that helps move heavy loads in the opposite direction to the force used.
What simple machine is used to pull up blinds?
A pulley.
When I pull down on the rope of a pulley the item being lifted will go _____.
Up.
A wedge can be used to _________ and ___________.
Split, fasten and cut.
What is a gear?
Rotating wheels with teeth that mesh together. They change speed and direction of rotating shafts.
What simple machine is used to seal a jar?
A screw.
In a catapult is it better to have a fulcrum closer to the item being launched or further away?
Further away.
Easier.