Force
A push or pull
What is force?
A force that acts in the opposite direction of motion. Slows objects down
What is friction?
These make work easier
What are simple machines?
The tendency of an object in motion to stay in motion or an object at rest to stay at rest
What is inertia?
Pulley that does not move
What is a fixed pulley?
This is the force when an object is not in motion.
What is a balanced force?
The formula for work
What is work = distance x force?
True or False? Simple machines decreases the amount of work.
FALSE
When an object changes speed.
What is acceleration?
Can pry objects open.
What is a lever?
Forces are unequal. An object is in motion.
What is an unbalanced force?
Two equal and opposite forces cause an object to
What is the object does not move?
These are the main parts of a lever
What are effort, load, fulcrum?
To do work we need this.
What is energy?
a slanted surface that connects a lower level to a higher level
What is an inclined plane?
The pulling force between two objects.
What is gravity?
Sandpaper is a surface with lots of this.
What is friction?
The heavy object being lifted or moved.
What is load?
What is a compound machine?
an inclined plane wrapped around a post
What is a screw?
An object at rest will stay at rest and an object in motion will stay in motion unless acted upon by an outside force.
What is Newton's first law of motion?
The process of changing position
What is motion?
A fixed point on a lever
What is a fulcrum?
What is a wedge?
was first invented for pottery
What is a wheel and axle?