Energy Basics
Energy is the ability to do ______.
Work
Energy is motion is considered kinetic or potential energy?
Kinetic
The amount of matter in an object is called?
Mass
Give 2 examples of elastic energy.
Examples) rubber band, trampoline, slinky, bow and arrow, hair tie...
TRUE
TRUE OR FALSE: Energy can be created or destroyed. It stays the same.
FALSE: Energy cannot be created or destroyed. It only changes forms.
Stored energy is considered kinetic or potential energy?
Potential
Which term is used to describe surface resistance.
Friction
Biomass, gasoline, batteries and food are all examples of?
Chemical Energy
An athlete eats a bowl of fruit before cycling. Write out the energy conversion. ______ --> _______
Chemical ---> Mechanical
TRUE OR FALSE: For every object, energy will always be half of the total amount.
FALSE
Where is potential energy greatest on a rollercoaster? Draw or explain.
At the top of the hill.
The force of attraction that pulls everything towards the center of earth.
Gravity
Radiant energy also goes by 2 nicknames. What are they?
Light and electromagnetic
A musician playing the piano. Write out the energy conversion.
______ --> _______
Mechanical ---> Sound
If the mass of an object doubles, its kinetic energy will...?
Double
Where is kinetic energy greatest on a rollercoaster? Draw or explain
At the very bottom of the hill.
The unit of energy
Joules (J)
Machines or actions are examples of which type of energy?
Mechanical
A plant using photosynthesis. Write out the energy conversion.
______ --> _______
Radiant ---> Chemical
If the speed of an object TRIPLES, kinetic energy will increase by a factor of?
Kinetic energy relies on what TWO things?
Mass and velocity (speed)
The strength or force gained by the motion of an object that is affected by mass.
Momentum
Gravitational energy relies on the mass and ____ of an object.
height
A battery-powered flashlight. Write out the energy conversion.
______ --> _______ ---> ________
Chemical--> Electrical ---> Radiant