Cumulative Exam — Cumulative exam Answers

Based on the concept of the global conveyor belt, what happens to ocean water as it moves from Antarctica to the equator?

A flashlight has a resistance of 2.4 . What voltage is applied by the batteries if the current in the circuit is 2.5 A?

Haley noticed a small spot on her skin that turned out to be skin cancer. Which treatment is her doctor most likely to use?

Two objects are held close together. When they are released, they move toward one another. Which conclusion is supported by this evidence?

A magnet placed against the wall of a metal shed falls to the ground, where it attracts a nail. What is the most likely explanation for this observation?

Which object reflects light with the longest wavelength?

Which is the best example of the law of conservation of energy?

Which wave is carrying the most energy?

Which would increase the speed of a sound wave?

Which best compares radiation and conduction?

How does a machine, such as a ramp, help make work easier?

Briana builds a circuit that has a resistance of 8.0 . What voltage should she apply to have a current of 0.8 A?

Which type of electromagnetic waves make up the colors of a rainbow seen after a storm?

Which types of electromagnetic waves have frequencies that are higher than those of ultraviolet light but lower than those of gamma rays?

Plants appear green because they do not absorb the green wavelengths of light. What happens to those green light waves when they hit a plant?

Which term refers to the ability to do work?

Farah is doing an experiment that involves calculating the speed of a longitudinal wave. What will most likely happen if she increases the temperature in the room?

Nolan set up the equipment shown in order to induce a current in a wire.

A wheelbarrow can be used to help lift a load, such as a pile of dirt, and then push the load across a distance.

What happens to the sound wave in echolocation?