☆Science☆

Front 1

a toy robot can walk and talk and runs on batteries. What type of energy is stored in the batteries?

Back 1

chemical

Front 2

Miguel is making a picture frame. He sticks a nail into a piece of wood and hits the nail with a hammer. Which form of energy is NOT released when the hammer hits the nail?

Back 2

electrical

Front 3

Which form of energy is electromagnetic energy?

Back 3

light

Front 4

Isreal observed a bolt of lighting during a storm. Which form of energy does a bolt of lightning produce?

Back 4

light

Front 5

Inside the sun, hydrogen atoms combine to form helium atoms. This process releases light and heat. Which form of energy powers the sun?

Back 5

nuclear

Front 6

On a cold winter day, she puts logs into a fireplace , then she strikes a match and sets the logs on fire.nas the fire burns, which 2 forms of energy are released?

Back 6

light and thermal

Front 7

When the space shuttle launched, Donna felt the warmth produced by the firing engines. Which form of energy was released during the launch?

Back 7

thermal

Front 8

A group of sheep are grazing in a field. As they eat, the sheep break down the molecules in the grass, which releases energy. Which form of energy is stored in the grass?

Back 8

chemical energy

Front 9

When a hand-held fan is turned on, the blades spin. What example shows the energy conversion that is required to make the fan work?

Back 9

chemical--> electrical-->kinetic

Front 10

The Law of Conservation of Energy states: _________

Back 10

Energy ia never created nor destroyed.

Front 11

Gordon throws a baseball into the air. It rises, stops when it reaches its greatest height, and then falls back to the ground. At what point doea kinetic energy change to potential energy?

Back 11

while the baseball is stopped in the air

Front 12

which energy change takes place when a toaster is turned on?

Back 12

electrical to thermal

Front 13

energy always______

Back 13

changes to other fotms of energy

Front 14

where is the kinetic energy GREATEST?

Back 14

as the biker is going downhill

Front 15

________ energy is the form of energy of light.

Back 15

Radiant

Front 16

a baseball is hit into the air with a bat. When does the baseball have the greatest gravitational potential energy?

Back 16

when it reaches its highest point

Front 17

what are 2 factors that determine how much gravitational potential energy is in an obect?

Back 17

the weight of the object and its height above ground

Front 18

_____is energy stored by things that stretch or compress

Back 18

elastic potential energy

Front 19

thermal heat is a product of friction....

Back 19

true

Front 20

thermal heat travels from cool areas to warm areas...

Back 20

false

Front 21

force is a push or a pull on an object. ..

Back 21

true

Front 22

friction is a force that opposes the motion between surfaces in contact with one another. ..

Back 22

false

Front 23

why doesnt a ball that is dropped from a given height, bounce back to its original drop height?

Back 23

(Thermal energy is lost due to friction.) The kinetic energy when the ball hits the ground changes into other forms of energy such as thermal (friction), sound energy, and elastic energy.

Front 24

what is a thermal conductor? provide an example of a thermal conductor and explain your reasoning behind your choice.

Back 24

A thermal conductor is a substance or object that obsorbs heat. An example would be metal because metal they have free moving electrons which can carry the energy quicker and more efficiently by vibrating.

Front 25

Why is Styrofoam a good insulator?

Back 25

since Styrofoam contaims small holes it traps air.