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Measurement & units
Force
Work
Speed
Energy
100
a unit is any measurement that there is 1 of.
What is a unit?
100
It accelerates
What happens when an unbalanced force is applied to an object at rest?
100
When a force moves an object in a direction parallel to that force.
When is positive work done?
100
Time= Distance/Rate
What is also true if Distance= Ratex Time
100
Motion
Kinetic and potential energy are the two types of energy that relate to:
200
Meters per second
What does "m/s" mean?
200
Sir Isaac Newton
who was units of force named after?
200
One joule
what does one newton exterted over a distance of one meter equal?
200
acceleration
The rate of change in speed or direction is called...
200
Stored Energy
What is potential energy?
300
Grams
What is the standard unit of measure for mass?
300
Changing direction
What is something that can change the acceleration of a car?
300
it measures how much effort is applied over a certain distance
what is work?
300
a rate
What is any change over time is called?
300
The greatest source of energy for the earth.
What is the sun?
400
Solid
What kind of volume would we be finding if we were using a ruler to measure the lengths of the different sides of the object?
400
Step on the brake at -10 m/s/s
What do you do if you want to accelerate at a rate of -10 m/s/s?
400
when a force moves an object in a direction parallel to that force.
What is positive work?
400
the object that goes with the steeper slope is moving faster.
On an distance/time graph, how do you tell if the object is moving at a greater speed?
400
Most of the energy sources we use today.
What are oil, natural gas, and coal?
500
Volume= Length x Width x Height
We would use this eqation to the volume of a solid object such as a cube.
500
Velocity and Acceleration
Time is a measurement in these two factors:
500
the distance over which work is done.
simple machines make work easier by increasing what?
500
a direction is required
what is required when answering a velocity question?
500
This form of energy is stored in wood, fossil fuels, and food.
What is chemical energy?