chapter 3 (pt. 2)

Question 1

level of confidence

Answer 1

question, hypothesis, theory, natural law

Question 2

motion

Answer 2

speed, velocity, acceleration

Question 3

Isaac Newton

Answer 3

laws of motion, law of universal gravitation, tidal force

Question 4

laws of motion

Answer 4

1. rest or motion
2. change = force
3. equal opposite

Question 5

law of universal gravitation

Answer 5

mass, weight, inverse square relation, centre of mass, circular velocity, geosynchronous orbit, closed orbit, escape velocity, open orbit

Question 6

tidal force

Answer 6

spring tide, neap tide