Q2.

Quantities in physics are either scalars or vectors.

(a)

Use the correct answers from the box to complete the sentence.

acceleration

direction

distance

speed

time

Velocity is

_in a given

The number of protons plus the number of neutrons in an atom is called

What does ice become when it absorbs enough heat energy. C. Frost. D. Liquid

Devon places sliced potatoes in a package of aluminum foil. He puts a metal grate over a campfire and sets the package on the grate. He warms his hands over the fire while he waits and watches the hot air carry ashes into the sky.

If the mass is 35g and the volume is 7mL what is thedenstiy in science

Where would you expect to find the center of gravity in a plastic ruler

At what temperature did the substance in the test tube into a solid?

What occurs when the velocity of Earth is doubled? a. The orbit of Earth around the Sun becomes smaller b. The orbit of Earth does not change c. The Earth escapes the Sun d. The orbit becomes more elliptical

When is a body said to be at rest

27. Calculate the impulse when an average force of 10 N acts on a cart for 5.0 s.

A boy on a bicycle is resting at the top of a hill then he rides his bicycle down the hill describe how the boy potential and kineti energy differ at the top middle and bottom of the him