Electricity
Parallel vs. Series Circuits
Light
Energy 1
Energy Changes
100
What causes electricity?
What is electrons moving around
100
A circuit with branches is known as a _____________ circuit
What is parallel
100
Which property of light explains why we have shadows?
Light travels in a straight line
100
What is a "renewable energy source". Give one example
A source of energy that can be used again and again. Eg. the sun
100
Describe the main energy change that happens in a battery-powered radio
Chemical energy --> sound energy
200
In an "open" circuit, are the electrons moving (eg. the light is on) or are they stuck (eg. the light is off)
What is stuck/light off
200
In a series circuit with two lamps, what happens to the second lamp when the first lamp is unscrewed?
Goes out
200
What colours is white light made of?
ROYGBIV (Red, orange, yellow, green, blue, indigo, violet)
200
What are non-renewable resources? Give two examples
Non-renewable resources are sources of energy that will run out. Eg. Oil, gas, coal
200
Describe the main energy change that takes place in a gas-powered car.
chemical energy --> kinetic energy
300
What are the three things a circuit needs to be complete?
What is 1) A energy source 2) connectors 3) Output
300
In a parallel circuit with a 10V battery and 5 lamps, how much voltage is each lamp getting?
What is 10V
300
A shirt is red: What colours is it absorbing and what colours is it reflecting?
Absorbing: OYGBIV Reflecting: R
300
The type of energy that powers the lights at our school
What is electrical energy
300
Describe the main energy change that happens in a yo-yo.
Potential energy --> kinetic energy
400
What is current?
How many electrons are flowing through a circuit
400
In a series circuit with a 10V battery and 5 lamps, how much voltage is each lamp getting?
What is 2V
400
What is the part of the eye that is responsible for letting light in
What is the pupil
400
The type of energy found in food and gas for our cars
What is chemical energy
400
Describe the main energy change happening in a flashlight
chemical energy --> light energy
500
What is voltage?
The strength/push that each electron in a circuit has
500
If you add a lightbulb to a series circuit, do the other lightbulbs a) get more bright b) get less bright c) stay the same
b) get less bright (voltage is splitting)
500
What is the part of the eye that catches light, and is made of rods and cones
What is the retina
500
Explain what potential energy is, and give an example.
Potential energy is when something has "could-be" energy or energy stored inside of it. Eg. Slinky, rock on a cliff
500
Describe the main energy change happening in a coal-powered train.
Chemical --> kinetic
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