4th quarter reviewer

Question 1

– All objects, regardless of weight, fall at the same rate in the absence of air resistance.

Answer 1

1.Galileo’s Free Fall Principle

Question 2

– An object resists changes in its motion unless acted upon by an external force.

Answer 2

2.Law of Inertia

Question 3

– For every action, there is an equal and opposite reaction.

Answer 3

3.Newton’s Third Law of Motion

Question 4

4.Kinetic Energy Formula –

Answer 4

KE = ½ mv², where energy depends on mass and velocity.

Question 5

5.Potential Energy Formula –

Answer 5

PE = mgh (mass × gravity × height).

Question 6

– Motion along a circle with constant speed, but velocity constantly changes direction.

Answer 6

6.Uniform Circular Motion

Question 7

7.Energy Measurement –

Answer 7

Energy is measured in joules (J).

Question 8

– Responsible for most nutrient absorption.

Answer 8

8.Small Intestine

Question 9

– Produces bile, which helps in the digestion of fats.

Answer 9

9.Liver

Question 10

– Primarily digests proteins.

Answer 10

10.Stomach