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Physics Test Review
OH YEAH!
I am A Future Scientist
I like science
Tests are cool
100

A push or a pull

Wowzzas!

100
Stand Still - not moving
What is a force?
100
Balanced
When all the forces acting on an object are equal, the object must
100
Force TIMES Distance! F X D
When an object is put into motion, the forces acting on that object are
100

J (Joule) or Newton Meter

How do you calculate work?

200
Time and Distance
What are the units when we calculate work?
200
Springscale!
To calculate the speed of an object, you must know...
200
Weight
All forces can be measured with a
200
A force that is flexible
The amount of gravitational force in an object is the objects
200
A force that slows down an object, can stop an objec,t and can produce heat! It RESISTS MOTION!
What is an elastic force?
300
An object in motion stays in motion unless acted upon by an unbalaced force!
What is friction?
300
Newton!
What is Newton's 1st law?
300
Surface type (texture) and mass of object
All forces are measured in
300
An object that is only affected by gravity
What two things affect friction on an object?
300
Distance DIVIDED BY Time
What is projectile motion?
400
A force that acts OPPOSITE of gravity (Exaple- the floor)
Answer to a mechanical advantage question!
400
A force that causes motion to occur
What is a normal force?
500
It allows us to use less force to do the work
Graph B on Board!
500
Be going in the same direction. Picking up a backpack is work - but carrying the backpack all day is NOT work.
Why do we use machines to do work?
500
NO!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Lessens the amount of effort force!
In order to do work the object and the force must
500
9.81 meter per second squared! (m/s^2)
DO simple machines make work easier?
500
Inclined plane, lever, pulley, wedge, wheel and axle, and the screw!
What is the rate at which objects are pulled down due to gravity?