Vocabulary
What is the energy of motion?
Kinetic energy
Energy cannot be created or ______
destroyed
If a horse travels at a speed of 10 mph, does it have more or less kinetic energy that if it goes 5 mph?
more
If I have a class of ice water, how does the temperature of the ice cubes change over time?
It increases
Plants use this type of energy from the sun to make food
light
What is the energy that is stored?
Potential Energy
a ________ applied force is needed to give a ball enough energy to travel between people who are far apart. (strong or weak?)
strong
Objects with the most _____________ and _____________ transfer the most energy.
mass and speed
the act of two objects running into each other that results in an energy transfer
collision
In what ways is God's design of energy proof of His character and love for people?
Energy is like God's love because it is constant and cannot be destroyed. The creation of energy makes it possible to move and enjoy activities and sports. Energy provides power that makes people's lives easier. Energy produces sound so people can communicate and enjoy music.
Forces of the same strength from different directions that are acting on the same object and that result in no motion of the object.
balanced force
When skiers apply wax to the undersides of their skis, they make the skis extra smooth, which reduces the force of ______________________ (kinetic energy or friction?)
friction
In a collision, some energy converts to ___________ and _____________.
sound and heat
This type of energy is observed when violin strings vibrate
sound
force
a push or pull
The rate at which an object changes position
speed
at least one force that is greater than the other forces acting on the same object that results in motion of the object
unbalanced forces
A process by which an object takes in light waves
light absorption
Solar panels absorb this type of energy to heat a home
light
matter
anything that takes up space
the ability to cause matter to move or change
energy
the energy associated with the random motion of particles in matter
thermal energy
a force that is given to an object by a person or another object
applied force
Explain why ice melts because of conduction rather than radiation when in a glass of water.
It melts through conduction because conduction is the transfer of thermal energy when two objects touch.
Friction
a force that resists the motion of an object