A battery powers a circuit for a small noisy fan. The fan's motor gets warm as it turns. What energy transformations are taking place?

Which of the following would cause the force of static friction to increase?

What does it mean for a substance to have a high reactivity?

If a certain piece of metal is cooled it will conduct electricity better is it a law, theory or hypothesis

Adding an organism to a food chain does not affect the other members of the food chain, but removing an organism does.

Sound in air can best be described as which type of wave?

Acceleration is a vector quantity. O O A. True B. False

What will happen to the brightness of a string of bulbs hooked up in series when you increase the number of bulbs in the string? A. Each light in the string will get brighter. B. Each light in the string will get dimmer. C.

What are the two factors that influence the composition of beach material

Which of the following indicates that a ChemicL change has taken place? (A) a change from liquid to a gas (B) an increase in the volume of a substance (C) a change in the color of a substance (D) a change from a solid to a liquid A precipitate is a

Which of these circuit schematics has an ammeter?