Thermal Energy
Transfer
Transfer
Energy Transfer and Temperature
Introduction to Properties of Waves
Modeling Waves Through Various Mediums
Properties of Visible Light
100
What direction does heat transfer?
Hot to cold
100
Give an example of convection
Ex. Boiling water, lava lamp, air conditioner, radiator, hot air balloon, etc
100
Name 3 ways we can describe a wave.
amplitude, frequency, wavelength, crest, trough
100
What does it mean for a waves to be REFLECTED?
The bounce off the something
100
At what point is the laser being absorbed?
D
200
Name the three types of heat transfer
conduction, convection, radiation
200
Which of the following factors contributes most to the amount of energy required to change the temperature of a sample of water by 10°C?
a. The source of the sample of water
b. The size of container holding the sample
c. The initial temperature of the sample
d. The amount of water in the sample
d. The amount of water in the sample
200
Which wave has more energy? Why?
a.
b.
b, because it has a larger amplitude
200
Which of the following provides an example of sound waves being reflected?
a. Hearing music being played by a neighbor's stereo through a wall
b. Water in a glass vibrating because of the sound of thunder
c. A noise that produces an echo when it bounces off a distant wall
d. The sound of a distant train getting louder as it approaches an observer
c. A noise that produces an echo when it bounces off a distant wall
200
Which of the following is the best example of an object absorbing light?
a. A black sweater in the sun.
b. A clean window in the sun.
c. A curved mirror in the sun.
d. A long shadow in the sun.
a. A black sweater in the sun.
300
Insulators serve to __________ the transfer of heat energy.
a. Decrease
b. Increase and decrease
c. Increase
d. Not impact
a. decrease
300
A 50 g ice cube and a 25 g ice cube are set on a table in a warm room. Which one will melt first? Why?
The 25 g ice cube because it is smaller
300
Which wave has a higher frequency? Explain.
a.
b.
a because it has more waves
300
Why can the sound NOT be heard in the second scenario?
There is no medium for the sound the travel through
300
A student places a pencil in a glass of water and observes that the pencil appears to be broken.
Which of these provides the best explanation for why the pencil appears broken?
a. The pencil absorbs all the lights rays that hit it.
b. Water reflects light rays away from the pencil.
c. Light rays are bent by the water in the glass.
d. The surface of the water reflects light rays.
c. Light rays are bent by the water in the glass.
400
Which material transferred the most heat?
Material 2
400
The cube made of which substance will take the longest to reach a temperature of 75°C?
Plastic
400
Lower frequency waves have relatively ______________ wavelengths.
a. Lower
b. Shorter
c. Taller
d. Longer
d. Longer
400
Geologists can learn about rock layers beneath the surface of Earth using sound waves. They use a vibration truck to send sound waves into the ground. A measuring truck has special microphones, called geophones, that pick up sounds.
This method for learning about rock layers depends on what characteristic of sound waves?
The sound waves reflecting
400
Explain what is happening to the laser at point B.
The laser is bouncing off/reflecting
500
Four metal cubes, each at a different starting temperature, are placed in contact with each other.
Which of the following describes the most likely flow of thermal energy in this situation?
a. Cube #4 to Cube #2
b. Cube #1 to Cube #2
c. Cube #3 to Cube #4
d. Cube #1 to Cube #3
d. Cube #1 to Cube #3
500
The sample in which environment had the smallest change in temperature after ten minutes?
Environment 4
500
This table provides simplified data on the relationship between the amplitude of a wave and the energy the wave carries.
Based on the pattern in the table, a wave with an amplitude of 4, would carry how much energy?
a. 4
b. 16
c. 32
d. 80
c. 32
500
Music studios use “soundproof" recording rooms. The walls of these rooms are designed in such a way that the only sounds that reach the microphones inside the room are sounds from inside the room. The most important characteristic in designing the soundproof room is to create walls that–
absorb sounds and prevent them from passing through.
500
The distance from Earth to the Moon can be accurately calculated by pointing high-powered lasers onto the Moon’s surface. The time it takes for the light to return is used to find the distance. To make this possible, astronauts on the Apollo 11 Moon mission had to place a device on the Moon that would –
a. store the laser light for future use.
b. bounce the laser light back to Earth.
c. allow the laser light to pass through.
d. change the frequency of the laser light.
b. bounce the laser light back to Earth.