Show:
Force and Work
Motion
Work
Levers
Simple Machines
100
the ability to do work
What is energy
100
a measure of the distance an object moves in a given amount of time
What is speed
100
the formula for work
What is force x distance
100
a beam or bar that rotates around a fulcrum
What is a lever
100
the steepness of a slope
What is grade
200
the force applied to a machine
What is effort
200
the formula for speed
What is distance divided by time
200
Joules are used to measure this
What is work
200
effort at the center of a beam, between the fulcrum and the load
What is a third-class lever
200
a slanted surface
What is an inclined plane
300
the result of a force applied to an object that causes it to move
What is work
300
the rate of change in velocity over a period of time
What is acceleration
300
An object needs to travel a set distance. In order to do more work, this must increase.
What is force
300
what the square represents in our classes of levers diagrams
What is the load
300
a device used to make work easier
What is a simple machine
400
the formula for force
What is mass x acceleration
400
The combination of an object's speed and direction
What is velocity
400
The speed of a car traveling 126 miles in 3 hours
What is 42 mph
400
the pivot (or fixed) point of a lever
What is a fulcrum
400
an object that resists the force applied by a machine
What is the load
500
A knife and ax are this type of simple machine
What is a wedge
500
Oars on a boat are examples of ____-class levers
What is first
500
A third-class lever requires more effort, but can move the _____ a greater ________
What is load, distance
500
As the distance from the effort to the fulcrum _____, the amount of effort needed _______.
What is decreases, increases
500
the formula for slope
What is rise divided by run