Energy Types
Energy Transformations
Work
Calculating Work
Miscellaneous
100
This type of energy involves the movement of objects.
Kinetic Energy
100
What do we call it when energy changes from one form to another?
An Energy Transformation
100
What do we call it when a force makes an object move in the direction of the force?
Work
100
What is the equation for finding out how much work is being done on an object?
Work = Force x Distance (W=F x d)
100
What is energy?
Energy is the ability to cause change or do work.
200
What do we call stored energy?
Potential Energy
200
In a flashlight, batteries have chemical energy that changes into this type of energy.
Electric Energy
200
True or False: Holding books in your arms is an example of work.
False
200
How much work is happening on a box when a force of 5N is applied for a distance of 10m?
50 J (5N x 10m)
200
What does the law of conservation of energy say?
Energy cannot be created or destroyed, but can be transformed from one form to another.
300
This type of energy is also known as heat energy.
Thermal Energy
300
What two types of energy does a light bulb produce?
Radiant (light) Energy and Thermal (heat) Energy
300
True or False: Picking up a stack of books is an example of doing work.
True
300
Calculate the work being done on a backpack being lifted 1m with a force of 20N.
20 J (20N x 1m)
300
Give an example of potential energy.
A stretched rubber band, a drawn bow and arrow, holding a ball in your hands, sitting in a chair
400
What is another name for light energy?
Radiant Energy
400
Draw an energy transformation diagram for a flashlight.
Chemical Energy to Electric Energy to Radiant Energy
400
True or False: In order to do work, an object must move in the direction of the force.
True
400
You carry a 20 N bag of food up a 6 m flight of stairs. How much work did you do?
120 J (20N x 6m)
400
Draw a diagram of what happens when we eat food.
Chemical Energy to Kinetic Energy + Thermal Energy + Electric Energy
500
What type of energy do batteries have?
Chemical Energy
500
Draw an energy transformation diagram for a car.
Chemical Energy (Petrol) to Electric Energy to Mechanical Energy
500
What two things does work depend on?
Force on an object and Distance the object moves
500
A student lifts a bag from the floor to her shoulder 1.2m above the floor, using a force of 50N. How much work does the student do no the bag?
60 J (50N x 1.2m)
500
What type of energy is formed during every energy transformation?
Thermal (heat) Energy (or waste energy)
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