Types of Energy
What type of energy does moving water have?
Kinetic
What is pitch?
How high or low a certain sound sounds
What object can we shine the sun in, and it produces rays of the rainbow?
Prism
True or False: Convention is heat from the sun.
False
True or False: Only sound energy is in the forms of waves.
False; Light energy also comes in waves
What is wavelength?
Measuring from one point of a wave to another
True or False: The color black is made from all of the colors being reflected.
False
How is heat transferred from a campfire to people?
Radiation
What is the definition of energy?
The ability to cause motion or change
When the pitch of a sound is super high, what does it frequency look like?
High Frequency
How do white light waves act when they enter a prism?
a. they reflect
b. they become raindrops
c. they bend or refract
d. they are absorbed
c; they bend or refract
Which of the following shows convection?
a. the sun warms your skin
b. you rub your hands together
c. a metal spoon in soup becomes warm
d. a mobile turns from a candle burning below it
True or False: Heat energy is formed by electrically charged particles.
False; that is electrical energy.
A guitarist strums two strings of the same thickness on a guitar. The first string vibrates more quickly than the second string. What is true about the pitch of the strings?
a. the first string has a higher pitch than the second
b. the second string has a higher pitch than the first
c. they have the same pitch
Which of the following can act like a prism?
a. radio
b. raindrop
c. a piece of paper
d. laser
b; raindrop
Explain why ice might melt after you have skated on it.
Skating causes friction between the skates and the ice. Friction gives off heat, so there's enough between the skates and ice to melt the ice.
Which type of energy is formed by vibrating objects?
Sound
If you want to stay cool while playing outside on a sunny day, is it better to wear a black T-shirt or a white T-shirt? Why?
A white T-shirt is better to wear because a black T-shirt absorbs light from the sun that becomes heat.