Magnetism and Energy Quiz

A student wrapped a wire around a nail. The two ends of the wire were then attached to a battery. What will happen when the student moves steel paper clips close to the nail?

• The steel paper clips will move away from the nail because the nail becomes magnetic.

• The steel paper clips will move toward the nail and away from the battery because the battery no longer has power.

• The steel paper clips will move away from the nail and toward the battery because the battery becomes magnetic.

• The steel paper clips will move toward the nail because electricity flowing through the wire makes the nail magnetic.

A student is doing an investigation with two magnets. The student arranges the magnets in two positions. Which question about magnets could best be answered by this investigation?

• In which position are the magnets most useful?

• At which distances do the magnets generate electricity?

• How do the positions of the magnets affect the motion of the magnets?

• How does the distance between the magnets affect the strength of the magnetic force?

The diagram below represents two forms of electromagnetic energy traveling in a vacuum. What difference is shown between infrared light and ultraviolet light?

• The speeds at which they travel

• The material through which they are traveling

• Their wave heights

• Their wavelengths

The diagram below represents two bar magnets labeled A and B. They are positioned close enough to attract or repel each other. State whether the two magnets will attract or repel each other and explain why this will occur.

The diagram below represents different forms of electromagnetic energy in the electromagnetic spectrum. Identify the color of visible light that has the longest wavelength.

• Gamma Rays

• Violet

• Yellow

• Red

The basic difference between infrared light, visible light, and ultraviolet light is their:

• Wavelength

• Temperature

• Electric Charge

• Traveling speed

The diagram below represents a roller coaster at two positions on the roller coaster track. Compared to the potential energy of the roller coaster at the top of hill 1, the potential energy of the roller coaster at the top of hill 2 is:

• Less because the roller coaster is at a lower elevation (height)

• Less because the roller coaster is on a more gentle slope

• Greater because the roller coaster is at a lower elevation.

• Greater because the roller coaster is on a more gentle slope

The diagram below represents a bar magnet. Six locations, A through F, are labeled on the magnet. Which two locations on the magnet would have the greatest attractive force?

• Location A and F

• Location B and E

• Location C and D

• Location D and F

The diagram below represents energy transformations in a moving electric car toy. Which form of energy is the original source of power for this car?

• Electrical

• Mechanical

• Sound

• Light

An apple falls from a tree, the apple’s potential energy and kinetic energy change. The diagram shows the apple at two positions, T, and G. At position T, the apple is about to fall. At position G, the apple is about to hit the ground. Which graph shows the apple’s potential energy and kinetic energy at positions T and G?

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