Describe how air particles differ in the way they move when air begins to cool.

The "Big Bang" is an example of what type of scientific statement?

When a perfume bottle is opened, some liquid changes to gas and the fragrance spreads around the room. Which sentence explains this?

A car travels at an average speed of 65 mph for 10 hours how far did it travel A 65 miles. B 650 miles 10. Miles 6500 miles

Three liquids that will not mix are poured into a cylindrical container. The volumes and densities of the liquids are 0.574 L, 2.50 g/cm3; 0.445 L, 1.04 g/cm3; and 0.498 L, 0.659 g/cm3.

My little brother makes a ramp to push his toy dump truck to his sandbox

The portion of a light ray that falls on a surface is a/an

Give the definition for diffusion. (A) gas molecules mix unequally average distance between collisions (B) gas molecules escape from a container into a vacuum through a small hole (C) gas molecules mix equally (D) gas molecules spread out in a

As resistance goes up, what happens to the current?

1. A 0.828-nm photon collides with a stationary electron. After the collision, the electron moves forward and the photon recoils backwards. a) Find the momentum of the electron. b) Find the kinetic energy of the electron.

When are you most aware of your motion in a moving vehicle: when it is moving steadily in a straight line or when it is accelerating?