Both positive and negative charges will spread the leaves of an uncharged electroscope.

a) True

b) False

In 1998, scientists discovered that the expansion of the universe has been accelerating. What force is causing this phenomena?

Why does a light go out when you turn off the wall switch? -The switch absorbs the electrical energy. -The switch changes the direction of the flow of electrons. -The switch changes the circuit from series to parallel.

Energy is stored?

Do baking bread release or absorb energy

A person can only see object placed at 40cm from him state his defect

What is one benefit of a switch in a circuit?

When you see a straw in a glass of water it looks bent why is this?

Compare the energy and wavelength of a microwave to the energy of a gamma ray.

T/F all compounds are molecules but NOT all molecules are compounds.

particle is projected from the surface of the planet Krypton with a speed equal to 3.6 times the escape speed from that planet's surface.