What is ELECTRIC ---> SOUND / ELECTRIC ---> RADIANT. AND MANY MORE
100
This is the type of energy a spring has.
What is ELASTIC POTENTIAL
100
How can you reduce friction?
What is apply a lubricant.
200
The sum of the potential and kinetic energy in a system
What is MECHANICAL ENERGY
200
Name the two TYPES of energy.
What is POTENTIAL AND KINETIC
200
____________________ turns into electric energy in a battery.
What is CHEMICAL ENERGY
200
energy due to motion
What is KINETIC ENERGY
200
What two things does potential energy depend on?
What is HEIGHT AND WEIGHT
300
When you apply a force to an object and the object moves in the direction of the force.
What is WORK
300
Name THREE types of energy the sun has.
What is RADIANT, THERMAL, and NUCLEAR
300
Name at least three energy transformations that occur in a TV. Be SPECIFIC! `
What is ELECTRIC --> RADIANT (LIGHT) ---> SOUND --> THERMAL
300
Name three types of potential energy
What is GRAVITATIONAL, CHEMICAL, ELASTIC
300
Some energy is always transformed into what?
What is THERMAL ENERGY
400
the force that resists the motion of two objects that are sliding past each other.
What is FRICTION
400
This is the form of energy that a drum gives off.
What is SOUND ENERGY
400
Name FIVE energy transformations that occur in a car. EXPLAIN
What is CHEMICAL (GAS) ---> ELECTRIC (BATTERY) --> MECHANICAL (MOVEMENT) ---> RADIANT ENERGY (EXHAUST / LIGHTS) ---> THERMAL ENERGY
400
A car that has a mass of 200kg is going 30mph and a car that has a mass of 400kg is going 30mph. Which has more kinetic energy. EXPLAIN.
What is 400kg car because it has more mass and kinetic energy depends on mass and speed.
400
Scientists sometimes refer to thermal energy as what
What is WASTE ENERGY.
500
Energy that travels through electromagnetic waves
What is RADIANT ENERGY
500
Name the FOUR types of energy a space heater has.
What is ELECTRIC, RADIANT, SOUND, THERMAL
500
Name FIVE energy transformations that can occur with a wind mill. EXPLAIN
What is POTENTIAL (TO MOVE) --> KINETIC (WIND) --> MECHANICAL (MOVEMENT OF MILL) --> SOUND --> THERMAL (WHERE IT IS SPINNING)
500
Where on a roller coaster would you have the most kinetic energy? Why? Where would you have the most potential energy? EXPLAIN.
What is At the bottom of a hill you would have the most KE because you are going the fastest and KE depends on speed. You would have the most PE at the top of a hill/ the highest point because PE depends on height.
500
What does the law of conversation of energy state?
What is energy can be transferred or transformed, but it cannot be created or destroyed.