Waves
A wave is...
disturbance that transfers energy without transferring matter
Work is...
the transfer of energy that occurs when a force makes an object move
Fuel is...
A material that can be burned to release energy
Force is...
A push or pull on that one object exerts on another
Friction is...
the force that resists the sliding of two surfaces in contact.
Which type of waves does NOT transfer energy through matter
Electromagnetic Waves
You are planking for a minute straight, you feel your abdomen and core muscle burn. Which of the following is true?
You are not doing work
How does a burning wood fire become light and thermal energy?
Burning fuel.
What happens when you pick up a box from the floor and hold it up in the air?
Kinetic Energy decreases
gravitational potential Energy increases
you are doing work
Friction turns thermal energy from which type of energy?
Kinetic energy
What causes sound waves when a drummer hits the drums?
The sound waves are caused by the vibration of the drum.
Give an example of how kinetic energy could be turned into thermal energy .
By rubbing your hands together, causing friction
The process of a car burning fuel to make it move is an example of transferring __________ Energy into ________ Energy
Thermal, Kinetic
Give an example of “work” that would not be considered “work” in a scientific term?
Anything that is not moving
The brakes on a bicycle work by rubbing a piece of rubber or leather against the wheel, stopping the motion of the wheel. Why does applying the brakes bring the bicycle to a stop?
Kinetic Energy is transferred into thermal energy through the friction. This lessens the kinetic energy of the bike, making it slow down.