Energy Transfer
What are the 3 different ways that we can transfer heat?
Conduction, Convection, Radiation
How is "energy transformation" different to "energy transfer"?
Energy Transformation is when one form of energy is converted into another.
Energy Transfer is when energy moves to another object or location.
How is electrical energy transferred?
Through the movement of electrons.
BONUS 100
What does PPE stand for? List three different types of PPE.
PPE: Personal Protective Equipment e.g. safety goggles, gloves, masks etc.
What are the three states of matter?
Solid, Liquid and Gas
BONUS 200
How does potential energy differ from kinetic energy?
Potential energy: Stored energy
Kinetic energy: Motion/movement
What is an electric circuit? What are the two main types of electric circuits?
A closed loop that electrons can travel in.
Series [simple] and Parallel
Draw and label a diagram of the way we set up the conduction experiment.
Includes: bunsen burner, tripod, metal star, wax
BONUS 200
What was the conduction experiment we did? How did heat transfer in this experiment?
Spoon experiment or "Conveniently shaped gauze mat" experiment [metal star].
Heat transferred from the part of the object that was being heated towards the colder sections of the object.
What is the energy transformation required if I was to turn on my phone? [Include the form and type of energy in your answer]
chemical potential --> mechanical kinetic --> light kinetic
BONUS 100
What does a battery, globe and closed switch look like in a diagram of a circuit?
BONUS 150
What is an aim, hypothesis and equipment list?
Aim: A goal you want to achieve by the end of the investigation. Usually starts with "To do" or "To determine if" [50 bonus points].
Hypothesis: An educated guess.
Equipment List: Materials used in the investigation.
What was the convection experiment we did? How did heat transfer in this experiment?
Tea Bag Rocket.
Warm air up, cool air down.
What is the energy transformation required if I was to slide down a slide? [Include the form and type of energy in your answer]
gravitational potential --> kinetic energy --> thermal energy [bonus 50 points]
What do I mean by "switch open" and "switch closed"?
Switch open: The circuit is interrupted because the switch is off. It cuts off the electrons that are trying to flow through.
Switch closed: The circuit is not interrupted because the switch is on. The electrons can flow through.
What is a Risk Assessment and why is it used?
Used to identify health and safety hazards and evaluate the risks presented within the workplace. Helps us prepare for risky scenarios.
What was the radiation experiment we did? How did heat transfer in this experiment?
Black and white cans exposed to the sun/heat lamps.
Black matte can absorbs and emits more heat, so the temperature of the water inside the black can was higher than the white can [BLACK ABSORBS, WHITE REFLECTS].
BONUS 200
What is the energy transformation required if I was to light a match? [include the form and type of energy in your answer]
chemical potential --> mechanical kinetic --> light kinetic --> thermal kinetic
In which direction are electrons pumped through the battery in an electric circuit? Why?
Electrons are negative so they will flow out from the negative end towards the positive end. This is because they are attracted to the positive end.
BONUS 300
How do I SAFELY light a heat flame on a bunsen burner?
1. Bunsen on heat mat.
2. Connect hose to gas tap.
3. Close hole.
4. Light match and hold on top of the barrel of bunsen.
5. Open gas tap.
6. Open hole.
BONUS 200