Energy Resources
Why is solar a renewable energy source?
It can be made over and over in our lifetime.
What is a collision?
Two objects crashing into each other.
What is kinetic energy?
Energy that an object has because of its motion.
What is energy transfer?
The movement of energy from one location to another.
What does an electrical conductor do?
It lets electricity flow.
What is the impact of fossil fuels on the environment?
They cause pollution.
How can people give more speed to an object?
By applying more force to the object (move it faster).
What is potential energy?
Energy that is stored in an object based on its position.
A hand getting warm when placed near a fire is an example of what type of energy transfer?
heat transfer
What does an electrical insulator do?
It keeps electricity from flowing.
Name 3 renewable resources.
solar, wind, hydropower
Which car crash is capable of creating more damage and why?
2 cars traveling 30mph hitting each other.
2 cars traveling 10mph hitting each other.
2 cars traveling 30mph hitting each other.
They are traveling at a faster speed, so they have more energy to transfer during the collision.
What is an example of kinetic energy?
Answers will vary
What happens to energy when a flashlight is turned on?
The energy is transferred from the battery to produce light.
What is a good conductor for electricity?
Answers will vary (metals/water)
Name 3 fossil fuels.
coal, oil, and natural gas
How can gravitational energy (height energy) create more speed in a bike?
As a bike climbs a hill it is storing the energy created from moving up the hill. When the bike goes down the hill all the energy is released causing the bike to move faster.
What is an example of potential energy?
Answers will vary
Energy can be transferred in multiple ways, name 3.
light, sound, heat
What is a good insulator for electricity?
Answers will vary (non-metallic materials/ air)
What does it mean if a fuel is labeled as non-renewable?
It cannot be replaced at the same rate that it is used.
Why is speed important during a collision?
The faster something is moving the more energy it has to transfer during a collision.
What type of energy is a bike sitting at the top of a hill?
potential energy
During a collision energy is transferred into what 2 things?
sound, heat and the 2nd object
Which material would most likely be used to cover electrical wires?
plastic