Explain how energy can be transformed from one form to another (specifically potential energy and kinetic energy) using a model or diagram of a moving object (roller coaster, pendulum, or cars on ramps as examples).
Recognize that energy can be transferred from one system to another when two objects push or pull on each other over a distance (work) and electrical circuits require a complete loop through which an electrical current can pass.
Explain how simple machines such as inclined planes, pulleys, levers and wheel and axels are used to create mechanical advantage and increase efficiency.
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Q 1/10
Score 0
Niagara Falls is a good example of __________________.
30
Potential energy being transformed into kinetic energy
Energy being destroyed
Kinetic energy being transformed into potential energy
Energy being created
Q 2/10
Score 0
Which of the following has kinetic energy?
30
a battery
an archer’s bow that is drawn back
a rolling bowling ball
a rock sitting at the top of a hill
10 questions
Q.
Niagara Falls is a good example of __________________.
1
30 sec
7.P.2.1
Q.
Which of the following has kinetic energy?
2
30 sec
7.P.2.1
Q.
When riding a roller coaster, you go up and down many hills. When do you have the maximum potential energy?
3
30 sec
7.P.2.2
Q.
Potential energy that depends on height is called _________________
4
30 sec
7.P.2.1
Q.
Which example involves the transformation of chemical energy directly into light energy?
5
30 sec
7.P.2.3
Q.
To cook food, an oven converts electrical energy into ________ energy.
6
30 sec
7.P.2.3
Q.
The law of conservation of energy states that _____________________
7
30 sec
7.P.2.2
Q.
How can simple machines make work easier?
8
30 sec
7.P.2.4
Q.
Which simple machine would be the most efficient for lifting an object 30 meters off the ground?
