An organism is made up of

A) a group of tissues working together

B) a group of cells working together

C) a group of organ systems working together

D) a group of atoms working together

Metals are good conductors of electricity because their protons can roam freely throughout the material. True False

Cause of a severe storm

Does the moon emit radiation? No, the Moon only reflects radiation. Yes, the moon has a temperature above absolute zero so it emits radiation. No, the moon has a temperature of absolute zero so it emits no radiation.

The energy of an electromagnetic wave is related to its amplitude. a. True b. False

A student pushes a 2.85 kg cart causing it to accelerate at a rate of 4.9 m/s squared. What amount of force must the student have used? (2 sig digs)

When the velocity of a mass on a spring is zero, the acceleration is at

Which is a disadvantage of using wind as an energy source? Check all that apply. It may be unreliable. It is not naturally occurring. It produces a lot of waste. It requires wires to carry electricity. It generates large amounts of electricity.

One step in the production of hydroelectric power involves

A pot is heated on a stove. The water begins to boil rabidly. Which explains why the water is boiling fast?

A galvanometer can be calibrated to read electric A) current B) Voltage C) either of these D) neither of these