Forms of Energy
Which material would be best to use to INSULATE electrical wires?
A. wood
B. Plastic
C. copper
D. steel
B. plastic
In a circuit, what are the main components or parts needed?
wires, lightbulbs, batteries
In an experiment this is the one thing that is changed.
variable
How long does one complete rotation of Earth to occur?
24 hours or 1 day
If I am feeding a large fish in the aquarium filled with water with tongs and the tongs appear broken, why is this happening?
Light is refracted as it moves from one medium to another.
What type of energy do solar panels use?
light energy
If one light bulb burns out the rest will stay LIT. What type of circuit is this?
Parallel circuit
Why is it important to conduct experiments multiple times?
To increase the reliability of results
The rotation of earth is...
What happens when light strikes a mirror or other smooth/shiny surface?
It is reflected at a 90 degree angle.
Which of the devices below are NOT designed to produce both sound and light energy?
A. fireworks
B. television
C. alarm clock
D. trumpet
D. trumpet
If one light bulb burns out the rest will turn OFF. What type of circuit is this describing?
Series circuit
If an object is in motion, what force causes it to stop?
FRICTION, acting in the opposite direction.
If there is 11 hours of daytime in a city, how many hours of night time is there?
13 hours
What color absorbs the most light?
black
What type of energy do all of these describe?
flying, swimming, running, spinning, swinging
MECHANICAL means Movement!!!
If a switch is open it is....
broken
If an experiment has two variables what needs to be changed?
One of the variables need to be made the same, there can only be ONE variable.
At 10:00 AM, where would the Sun's location be in the sky?
EAST
What color reflects the most light?
white
What type of energy is produced in an electrical circuit when it is plugged in for too long?
thermal energy or HEAT
If a switch is closed...
energy flows!
If you are pulling an object up a ramp what would reduce the amount of force needed to pull the object up?
Decreasing the height of the ramp
What are the reasons or evidence that we can use to prove that the Earth is rotating on it's axis? (Hint: there are 3)
day and night cycle
Sun's apparent movement across the sky
shadows changing throughout the day
Give me an example of refraction.
Mrs. McCarty will tell you if you are correct.