A ball is released from the top of a hill. How fast is the

ball going when it reaches the base of the hill?

Approximate g as 10 m/s2 and round the answer to the

nearest tenth.

m/s

h = 2 m

h = 0.5 m

List and describe the four phases of matter. Give a common example of each.

What do elements in the same column of the Periodic Table usually have in common? A. same number of electrons in their outer shells B. same atomic number C. same number of electron shells D. same atomic mass

What acceleration will you give to a 25kg box if you push it with a force of 85N

How does transpiration play a role in the water cycle?

E electric - and magnetic-field what is the direction of propagation of the wave?

Why might the filament lamp inside a lamp melt when a lamp is first switched on?

A 0.6 kg basketball with a velocity of + 6 m/s rolls toward a 0.2 kg ball of clay with a velocity of + 1 m/s. If the balls collide and stick together, what is the velocity following the collision?

What are the disadvantages of dynamo?

Why must indirect evidence be used to study the structure of atoms?

2. When temperature increases, what happens to the molecules in a chemical reaction?