Heat
Work and Power
Light
Motion
Atoms
100
What does endothermic mean?
absorbs heat
100
What is the equation for work?
W=F x d
100
If a wave gets compressed together, what happens to its wavelength?
It gets shorter
100
How are speed and velocity different?
Velocity is speed with direction.
100
What are the charges of protons, neutrons, and electrons? (must get all correct)
Proton=+ neutron=neutral electron= -
200
What does exothermic mean?
releases heat
200
What is the equation for power?
P=W/t
200
If an electromagnetic wave has a long wavelength, tell me about its frequency and energy.
Low frequency and low energy
200
If a plane flies 4000 miles in 5 hours, what is the plane's speed?
800 mi/hr
200
How many atoms are in H2O? (the 2 should be a small subscript)
3, 2 H's and 1 O
300
How does the motion of the molecules of a substance change as it is heated?
The molecules speed up
300
If you push a 1000 N car 5 m,how much work do you do?
5000 J
300
What does red shift tell us about an object?
That it is moving away.
300
If a car travels at 60 m/s for 8 s, what is its distance traveled?
480 m
300
Compare the masses of protons, neutrons, and electrons. (must get all correct)
Protons and neutrons are equal, (1 amu,) electrons are so small, their mass is insignificant.
400
Compared to the molecules of a gas, how do the molecules of a solid look?
They are more closely compacted
400
If you do 120 J of work in 2 s, How much power did you use?
60 watts
400
What does blue shift tell us about an object?
That it is moving closer towards us.
400
What does a distance-time graph for constant speed look like?
straight, diagonal line going up
400
How many valence electrons does B have?
3
500
What's the difference between conduction. convection, and radiation?
Conduction: heat transfer through direct contact. Convection: in liquids and gases, heated material rises due to deceased density. Radiation: heat transfer through electromagnetic waves, (sunlight, infrared, microwaves, etc. Does not require a medium.)
500
If Max and Lina both move separate 20 N rocks up a flight of stairs that is 5 m, how much work do they do each? If it takes Max 5 s and Lina 4 s, how much power does each exert?
Max: work=100 J power= 20 watts Lina: work=100 J power= 25 watts
500
How does red shift work?
The wavelength of light is being stretched out because it is moving away, (remember the slinky demonstration,) therefore, it gives the appearance of a red color because red has the longest wavelength of visible light.
500
A plane starts at rest and ends up going 200 m/s in 10 s. Calculate the plane's acceleration.
20 m/s2
500
Write the electron configuration for carbon, (C.)
1s^2 2s^2 2p^2 (I know, it's written funny, but you should be able to get it.)
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