Which of the following could you do to increase the strength of an electromagnet? decrease the number of windings

decrease the electric current

change the core from wood to iron

all of the above

Whats is a non exaple of speed?

How can a force change the motion of an object that is already moving?

While working on her science fair project Venus connected a battery to a circuit that contained a light bulb. Venus decided to change the battery to a higher voltage, but she kept the same light bulb. What will happen to the current?

What is faster? The speed of light or the absence of light?

How long have advances in astronomy been occurring? Only for the past few years Only for the past decade Only for the past century For the past few centuries

What is matter in context clues

The metallic elements which all react in water are found in the: same group same period rare earth elements

How much work is required to move a box 5 meters across the floor with a force of 15N?

Why have plants in the alpine biome adapted to survive on limited nutrients?

At a molecular level, does plasma have more or less energy than other states of matter?