Chapter 5

Question 1

Centripetal acceleration

Answer 1

Acceleration towards the center of a circle

Question 2

Escape velocity

Answer 2

The precise speed required to escape the gravitational pull of another body

Question 3

Inertia

Answer 3

Property of an object that describes its resistance to change in motion.

Question 4

Momentum

Answer 4

An objects mass multiplied by its velocity

Question 5

Neap Tide

Answer 5

At first and third quarter moon, the sun and moon partially cancel each other out creating weaker tides.

Question 6

Spring Tide

Answer 6

Low tides are unusually low and high tides are unusually high due to the sun and moon being aligned (new moon, full moon)

Question 7

angular momentum

Answer 7

the momentum of a body associated with its rotation or revolution.

Question 8

central force

Answer 8

a force acting towards central motion

Question 9

circular speed

Answer 9

a body in a circular orbit moves at a constant speed

Question 10

conic section

Answer 10

the four kind of trajectories for escape velocity. circle ellipse, parabola and hyperbola

Question 11

hyperbola

Answer 11

shape of objects path when exceeding escape velocity

Question 12

vector

Answer 12

possess both magnitude and direction

Question 13

velocity

Answer 13

describe the speed and direction of which an object moves.