When you lift a book from the ground to your desk, what kind of work do you do, negative or positive? by lifting the book what do you change? Does it gain or lose energy? What kind of Energy?

How long does it take for light to travel through matter?

Why did ThomsonÍs results from experimenting with cathode rays cause a big change in scientific thought about atoms?

Can energy be transferred from one object to another? explain.

Which front formed widespread clouds rain or snow

Are earths surface is made up of plates the move. And why

An astronaut on the planet Trappist-1b tosses a rock horizontally with a speed of 7.95m/s. The rock falls through a vertical distance of 2.35m and lands horizontal distance of 9.57m from the astronaut.

Whicg of the following is not a force that would act on a bicycle as it moves down a street gravity air resistance fluid friction sliding friction

A student holds a magnet 1 m from a paper clip and sees no evidence of a force acting between the two. When the student brings the magnet 1 cm away from the paper clip, the paper clip begins to slide toward the magnet.

According to Newton's 3rd Law, an object's momentum depends on it's velocity and mass. 4 dog-sled teams competed to see who could gain the greatest momentum.

When resistors are connecting in a series, does the position of ammeter make any difference?