Heat Energy
True or False: There MUST be smoke or steam coming out of a heat source in order to cause an object to start moving.
False
True or False: Light is a form of energy.
True
You are going to make pasta for dinner. You put a pot of water on a stove. The flames from the stove are very hot. What evidence would show that the heat energy from the stove transferred to the water?
The water would increase in temperature and start boiling.
_____________ are materials that allow electrical energy to flow through them. _______________ are materials that DO NOT allow electrical energy to flow through them.
Conductors, Insulators
What observation during our heat energy stations proved that hot air rises?
The heat spinner spun the most/fastest when it was placed above the heat source.
Give an example of how electrical energy can be transferred to light energy. (not including the example we did in class)
Answers will vary.
Possible answers: When you turn on a switch, electricity can flow to a light fixture in your house, and the light turns on. When your phone charger is plugged into the wall and you plug your phone in, the screen lights up.
Give an example and explain how heat energy can be transferred to motion energy. (Not including the example we did in class.)
Answers will vary.
Possible answers include: A hot air balloon moves when the air inside of it is heated up, and that hot air rises. This carries the balloon up with it. A steam engine can move when water is boiled, which produces steam. The steam pushes on an axle to make the wheels spin.
Give an example of how electrical energy can be transferred to heat energy.
Answers will vary.
Possible answers: When your microwave/air fryer is plugged into an electrical outlet, it can heat up and cook your food. Electrical energy in your house can be used to power your heater to keep your house warm.
Give an example of how motion energy can be transferred to heat energy.
Answers will vary.
Possible answers include: When you exercise and move your body, your body temperature increases. When you rub two things together, friction can cause them to feel hot or start a fire.
What is wrong with this circuit? Why is the LED light not lighting up? (look at picture)
The positive side of the LED is connected to the negative side of the battery. The negative side of the LED is connected to the positive side of the battery. The electrical energy cannot all the way through the circuit.