Forms of Energy
True or False: Jumping on a trampoline involves both kinetic energy and potential energy.
True
The unit for Energy.
Joules (J)
As an object's speed increases, its kinetic energy ________.
Increases
What type of potential energy does a trampoline have?
Elastic potential energy
True or False: Power lines transporting electricity from a power plant to your home and example of energy transformation.
False, its an example of energy transfer
Kinetic energy
Identify the standard unit that scientists use to measure mass.
Kilograms (kg)
In a race, two cars have the same mass but different velocities. The car with the slower velocity has _________ kinetic energy than the other car does.
Less
What are the 3 forms of potential energy?
True or False: Daniel using the energy from eating a pasta for lunch to drain a 3-pointer during a basketball game an example of energy transfer?
False, energy transformation.
What type of potential energy does a Sandwich have?
Chemical potential energy
A microwave uses 15 kJ of energy to cook a frozen burrito. How many Joules of energy is that equal to?
15,000 J
What two things does kinetic energy depend on and which one does it depend on more?
Mass and Speed
Kinetic energy depends on speed more
Identify the three ways to change an object's shape and, therefore, elastic potential energy.
Compressing, stretching and twisting
Create a simple flow diagram for and electric blanket.
Electrical → thermal
Identify the two forms of energy that hydro power relies on.
Gravitational potential energy and kinetic energy.
Whats the definition of energy?
The ability to do work
How much energy does a 4 kg apple have that is thrown at a speed of 2 m/s?
8 J
A 0.9 kg pineapple falls from a tree that is 5.8 m tall. How much energy does the pineapple have?
51.16 J
Create a simple flow diagram for an apple falling off a tree limb.
Gravitational potential energy → Kinetic
Identify 3 forms of energy produced by a crackling campfire.
Thermal energy
Light Energy
Sound Energy
Two bags of Takis have a total of 250,000 J of energy. Calculate how many kilojoules of energy one gingerbread man has.
125 J
What is the mass of a ball that is rolling with a speed of 26 m/s and has 1,200 J of energy?
3.55 kg
What is the mass of a picture that falls off a shelf 6 m high and has 150 J of energy?
2.55 kg
Create a simple flow diagram for a man eating dinner, then tap dancing.
Chemical → kinetic → sound