KE and PE
Calculations
Forms of Energy
Forms of Energy
Transformations
100
The units of energy
What are Joules
100
There is a bell at the top of a tower that is 45 m high. The bell weighs 190N. Calculate the energy of the bell.
What is 8550 J
100
Which type of energy is used with an alarm clock?
What is electrical, light, or sound energy?
100
Which type of energy is used with a bell?
What is sound energy?
100
Energy transformations inside of a flashlight
What are chemical energy --> radiant energy
200
Kinetic energy is
What is the energy of motion
200
A skater on a skateboard is sitting at the top of a hill that is 25 m high. The skater has a mass of 60 kg. Calculate the potential energy of the skater.
What is 14,700 J
200
Which type of energy is used with a flashlight?
What is electrical/ light energy?
200
The ability to do work or change an objects position.
What is energy?
200
The energy conversions in a solar car
What are radiant energy --> electrical energy
300
Potential energy is ______________
What is energy stored for later use
300
If a volleyball that weighs 5kg is served from a height of 3 m, it will travel at a speed of 10 m/s. Calculate the potential energy of the ball.
What is 15
300
Which type of energy is used with a wind up toy?
What is mechanical energy?
300
Which is not a kind of energy? sound thermal circuit mechanical
What is a circuit?
300
The energy conversions in a plant during photosynthesis
What are radiant energy --> chemical energy
400
Three forms of potential energy
What are chemical, gravitational potential, and elastic energy
400
If a volleyball that weighs 5kg is served from a height of 3 m, it will travel at a speed of 10 m/s. Calculate the kinetic energy of the ball.
What is 250 J
400
Which type of energy is used with a radio?
What is sound or electrical energy?
400
Name 3 ways that you have used electrical energy today
answers may vary
400
The energy transformation in a light bulb
What are electrical energy --> radiant and thermal energy
500
Kinetic energy of a ball at the bottom of a hill equals________.
What is potential energy at the top?
500
a boulder that weighs 100 kg is raised 10 m above the ground and then is dropped at a speed of 9.8 m/s. calculate the kinetic energy of the boulder
What is 9800 J
500
Which type of energy is used with a stove burner?
What is heat energy?
500
Energy cannot be created or destroyed
What is the law of conservation of energy?
500
The energy transformations when you light a match
What are chemical and mechanical energy --> radiant and thermal energy