Energy
Energy is the ability to cause _______ or make things happen
change
energy of sound, caused by vibrations, travels in waves
sound energy
energy of motion
kinetic energy
Emma kicked a soccer ball, causing it to roll forward. When she kicked the ball __________ was transferred from her foot to the ball
energy
If someone drops a book in the hall and you are in the room, what form of energy would let you know what happened?
Sound energy
energy of heat
thermal energy
When you turn on a lamp, _________ energy turns into radiant (light) energy.
electrical
stored energy
potential energy
Kevin plugged in a fan - identify the transfer of energy
electrical to mechanical
True or false: Energy can move between objects.
True - example: energy moves from your arm to a baseball when you throw it
What are the 2 forms of energy that the sun provides to the earth?
light and thermal
Name an appliance that uses sound as part of its function.
clothes dryer
microwave
What type of energy do you use your eyes to sense?
light
What type of energy is used to push a wheelchair?
mechanical
True or false: Energy can move through sound, light, heat, or electric currents
True - example: when you play a guitar, a sound wave travels through the air from the guitar to your ear
energy of movement
mechanical energy
Thermal energy can be __________ from one object to another.
transferred
grass
What form of energy is produced when a guitar string vibrates?
sound
Give at least two examples of how we rely on energy
examples: powering buildings, communicating with each other, riding a bike
What form of energy is used to cook food?
thermal energy
What type of energy CAUSES a bell to ring?
Mechanical energy is used to ring the bell and produce sound.
It takes more force to move something with more ____
mass
65 miles per hour identifies a -
speed