Potential and Kinetic
Heat
Electricity and Efficiency
Riddles
General Knowledge
100
What is the scientific name for stored energy?
Potential Energy
100
Degrees celcius is used to measure what?
Temperature
100
List 2 strategies we can use in our daily lives to reduce wasted energy.
Turning off lights and fans when exiting rooms.
Turning off taps when not in use. eg off when brushing teeth.
Use renewable sources of energy.
100
What word is always spelled incorrectly in all dictionaries
Incorrectly
100
What is the largest planet in our solar system?
Jupiter
200
Define Kinetic energy and give 1 example.
Kinetic energy is moving energy. Anything that is moving has kinetic energy, eg a person running, a ball rolling, a car driving etc.
200
In class, we had a competition to see who could design the best heat insulation. List 2 common traits of the best-performing teams.
- Lid to limit the heat in the form of steam from escaping
- Thick outer layering to limit heat radiating from the sides of the beaker
200
What electrical component is this?
Open Switch
200
The more you take, the more you leave behind.
Footsteps
200
What is the largest organ in the human body?
Skin
300
There are 5 points of a rollercoaster. At which of these points is the kinetic potential the greatest and at which point is the potential energy the greatest?
Kinetic greatest at 3. (lowest point)
Potential energy is greatest at 5. (highest point)
300
This type of heat transfer is how energy from the Sun reaches the Earth, travelling through the vacuum of space.
Radiation
300
On the whiteboard, draw the symbol for an ammeter.
300
I’m tall when I’m young and short when I’m old.
Candle
300
What is the capital city of Russia?
Moscow
400
Describe a Rube-Goldberg machine
A Rube Goldberg machine, named after American cartoonist Rube Goldberg, is a chain reaction–type machine or contraption intentionally designed to perform a simple task in a comically overcomplicated way.
400
What are the three forms of heat transfer?
Conduction, Convection, Radiation
400
List 2 positive outcomes of being energy efficient.
Save money
reduce wasting resources
reduced greenhouse gases
400
I have keys but no locks. I have space but no room. You can enter, but you can't go outside.
Keyboard
400
What are the three most popular sports in the world?
Soccer/football
Cricket
Hockey
500
An elastic band is stretched and then launched into the air. It lands about 10 meters in front of its starting position. Describe all the forms of energy involved in this action.
Elastic potential energy - Stretched rubber band
Kinetic energy - Rubber band converts elastic energy to kinetic energy to move 10 meters
Gravitational potential energy - Gravity pulls the rubber band down mid flight.
500
List and describe the three types of heat transfer.
Conduction - Direct transfer of heat by contact between particles
Convection - Flow of fluids based on changes in density with temperature.
Radiation - Transfer of heat that requires no medium/contact.
500
Define input energy, output energy and efficiency.
Input energy: Energy you put into the system
Output energy: Energy you want from a system
Efficiency: Output/Input
500
What comes once in a minute, twice in a moment, but never in a thousand years?
The letter M
500
List the 5 major oceans in the world.
Atlantic, Southern, Indian, Arctic and Pacific