Forces
This is the force that keeps a basketball player from slipping and sliding on the court.
What is friction?
This is a flat slanted surface such as a ramp or a playground slide.
What is an inclined plane?
What is a lever?
We call the weight of object being moved this.
What is the load?
Simple machines help people because they make work this.
What is easier?
This is a change in position.
What is motion?
An inclined plane reduces the amount of ____ needed to move an object against gravity to a higher position.
What is effort?
What is a pulley?
This is the force applied to a simple machine that causes it to do work.
What is the effort?
The ability to do work is called this.
What is energy?
This is measured by how much force it takes to move and object and how far the object moves.
What is work?
This is a simple machine that is made up of one or more inclined planes and is used for force materials apart.
What is a wedge?
The simple machine that is a wheel with a rod running through it is called this.
A dog rolling on a skateboard would be considered this.
What is the load?
When using a pulley the effort is in this direction.
When using a pulley the load goes in this direction.
It is more work to move a box with more weight than moving the same distance with a box with less weight. Explain why.
More weight takes more force to move so more work is done.
When a wheel of a wheel and axle turns one time the wheel travels a _______ distance than the axle does.
What is greater?
A wheelbarrow or a rake are examples of this machine.
What is a lever?
A softball player hits a ball. It falls to the ground and rolls to a stop in the outfield. These two forces caused it to drop and slow down.
What are gravity and friction?
When using a lever the distance between the load and this word, determines how much effort is required to move the load.
What is the fulcrum?
If a student ran after a ball did they do any work? Explain why.
The axle in a wheel and axle turns with greater force than the wheel does and the axle moves a __________ distance.
What is a lesser distance?
The simple machine that would be used to move a flag up a pole is an example of this.
What is a pulley?
Pushing a wheelbarrow full of cement would be an example of this.
What is the effort?
This is an inclined plane wrapped around a cylinder.
What is a screw?