16
3 points
Among many different experimental results, which of these gives clear evidence for the wave behavior of light? Check all that apply.
The clear interference pattern formed when light is sent through the double-slit experiment.
None of the other answers are correct.
The individual dots created by extremely dim light hitting a screen, detector, or piece of film.
The spread-out spectrum of colors created when light passes through certain equipment, such as a prism.
17
3 points
Is it possible to prove, for certain, that a scientific theory is true?
No, because it is always possible that a future experiment will disagree with the theory.
No, because of the experimental error, or uncertainty, that is always present in any experimental result.
Yes, by means of a single confirmed experiment that verifies the theory.
Yes, by deducing it logically from other scientific theories that are known to be true.
Yes, by carrying out a sufficient number of experimental observations.
18
3 points
Can you make your car accelerate without using the gas pedal (the non-brake pedal)?
Yes, but only if you keep the velocity constant.
Yes, but only using the steering wheel.
Yes, but only using the brake.
No, because the only way to speed up is to press on the accelerator.
None of the other answers are correct.
19
3 points
A certain type of atom has only four energy levels, as shown in the diagram. Which quantum jump produces radiation with the shortest wavelength?
4
3
2
1
This cannot be answered without additional information.
From state 2 to state 1.
From state 4 to state 3.
Quantum jumps don't produce radiation.
From state 4 to state 1.
