The full lesson
What causes day and night?
List the following from smallest to biggest: solar systems, moons, stars, planets, universe, galaxies, universe
Name a contact force
Define repeatable
1.Calculate the mean from the following. Give answer to 1 decimal place:
2.2 2.8 3.5
Challenge: Explain why a year on mercury is shorter than a year on earth?
What happens when a system changes
What happens when a system changes
Name the 8 ways energy can be stored
Name the 8 ways energy can be stored
Name the 4 ways that energy can be transferred
Name the 4 ways that energy can be transferred
Name the units for energy
Name the units for energy
What energy store is in a battery?
What energy store is in ball before it is dropped to the ground
What energy store is in a cup of hot tea
The units for energy are
A tennis ball hitting a stationary racket is what energy transfer?
______energy store to ________ potential energy store
How does the energy levels of both stores change in a tennis ball hitting a racket?
“the store of kinetic energy ________ and the store of elastic potential energy ________”
What are the energy changes when a stationary car starts to move?
How does the energy levels change?
"the store of chemical energy _________ and the store of kinetic energy ________________"
A vehicle slowing down by applying brakes
(hint, this causes the breaks to heat up):
_________ --> __________
and complete the sentence, “the store of…”
Bringing water to boil by the heated filament in a kettle (hint, two different objects in a system can have the same type of energy
store
_________--> __________
and complete the sentence, “the store of…”
State changes in energy store and how energy is transferred for each example.
1. Battery-powered motor
2. Wind-up toy that is wound up and starts to move as it let go
3. Ball at the top of a slope that rolls down
4. Battery powered electric drill is turned on and drill starts to rotate
5. Candle
1. What are the 8 ways in which energy can be stored?
2. When energy moves from one store to another, we say the energy has been ____________
3. What are the two things that cannot happen with energy?
4. What are the units for energy?