Chapter 2.1

Question 1

V: change in a objects position relative to a reference point

Answer 1

motion

Question 2

V: the distance and direction of the objects change of position

Answer 2

displacement

Question 3

V: the distance an object travels per unit of time

Answer 3

speed

Question 4

How do you calculate displacement?

Answer 4

distance with a direction relative to your starting point

Question 5

T/F: Displacement can be calculated in the same direction?

Answer 5

True

Question 6

T/F: you subtract displacement if they are going in the opposite direction?

Answer 6

True

Question 7

T/F: you cannot directly calculate displacement if they are not the same or in opposite directions?

Answer 7

True

Question 8

What is the equation for speed?

Answer 8

speed = distance/time

Question 9

What is the difference between speed and velocity?

Answer 9

velocity has a direction; speed does not

Question 10

Is it possible to have a constant speed with a change in velocity?

Answer 10

yes

Question 11

How do you calculate momentum?

Answer 11

p = mv (momentum = mass x velocity)

Question 12

What are the units for momentum?

Answer 12

kg*m/s direction

Question 13

What is the unit for mass?

Answer 13

kg

Question 14

What are the units for velocity?

Answer 14

m/s direction