As you increase current, what happens to the strength of an electromagnet?

I am doing a project on inertia so if I roll a tennis ball and it hits the wall and rolls back does that demonstrate inertia?

When a 440-Hz tuning fork and a piano key are struck together, five beats are heard. If the pitch of the note on the piano is higher than the tuning fork, what is the frequency of the note? 440 Hz 445 Hz 435 Hz 435 or 445 Hz

Which of the following best illustrates chemical potential energy a dog Plane, gasoline gasoline, water moving down hill, a skydiver about to jump out of a plane

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

Describe what would happen if we removed all the plants from the food chain.

Which type of radiation has the lowest penetrating ability?

For which one of the following situations will the path length equal the magnitude of the displacement? a A ball on the end of a string is moving in a vertical circle. b A toy train is traveling around a circular track.

A poem on the body system

How many stars, approximately, are in the solar system?

The ends of a magnet where the force is strongest are magnetic