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Energy Unit 5
6th Grade study cards for Unit 5 Test; 3rd 6 weeks
| Question | Answer |
|---|---|
| Energy transformation that occurs when a switch is turned on a lamp… | #(electrical to light) |
| Kinetic energy is determined by an object’s mass and its… | #(speed) |
| A battery is used to light a flashlight: the energy transformations are: Chemical energy to electrical energy to… | (thermal energy to light energy) |
| Can energy be created by power juice? | (energy cannot be created) |
| Can a battery in a flashlight create the energy to make the light shine? | # (batteries store energy; they do not create it) |
| Steam rotates fan-like blades of a turbine that then spins an electric generator showing that… | # (mechanical energy from the turbine converts to electrical energy in the generator) |
| What types of energy transformations occur when a gear-driven flashlight shines? (the handle turns the gears, the gears turn a switch, then the light shines) | #Mechanical energy to, Electrical energy to, Light energy |
| When you rub your hands on your arms to warm up, what is the energy transformation? | # (mechanical to thermal) |
| A beaker of water on a hotplate increases in temperature because… | # (electrical energy changes to thermal energy) |
| When spinning blades turn generators and the generators produce electricity, the energy conversion is… | # (kinetic energy to electrical energy) |
| Cat sitting on top of a refrigerator has… | (potential) energy |
| Choose a scenario for this energy transformation: chemical energy to heat energy to mechanical energy | (gasoline is burned to move a car) |
| The roller coaster car with the MOST potential energy would be the one that is on the | (highest part of the track) |
| Energy transfers that take place in an car engine: the battery’s | Chemical energy changes to the starter’s electromagnetic energy, then to mechanical energy that turns the fan belt. |
| The form of energy that increases as an acorn falls from a tree branch is | Kinetic energy |
| A marble was dropped into flour from different heights. The higher the marble’s position, the deeper the hole it made in the flour. What were the students investigating? | (Does more potential energy transform into more kinetic energy when an object falls?) |
| The conclusion of the marble experiment was that | falling objects with more potential energy (do) have more kinetic energy. |
| A motor causes a copper coil to spin because it sends a current through paperclips to the coil. This demonstrates | Electrical energy that transforms to Mechanical energy in the spinning coil. |
| A transfer of energy is NOT involved in which situation? | (helium balloon floats in place) |
| When a TV is turned on… | #Electrical energy is changed to sound and light energy. |
| Roller coaster cars will experience the greatest gravitational potential energy… | #At the top of the (higher) hill. |
| How do the potential energy and the kinetic energy of roller coaster cars relate? At the highest point the car has | # (the greatest potential energy and the least kinetic energy) |
| When the roller coaster car goes downhill, what happens to the amount of kinetic energy? | # (it increases) |
| If a pump pushes water up by turning a propeller that spins and forces the water up the pipe, what energy transformation is happening? | #Electrical energy (in the pump) to Mechanical energy |
| Along any roller coaster ride, the cars have the greatest potential energy when they are: | # (at the top of the hills) |
Created by:
m9000038
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