Chapter 2 Kinetics Review

Question 1

Acceleration = Rate of change of __________

Answer 1

Velocity

Question 2

Speed (a scalar) = __________ of velocity (a vector)

Answer 2

Magnitude

Question 3

a = Δv/Δt = (__________)/(__________)

Answer 3

Change in Velocity, Change in Time

Question 4

Negative acceleration occurs when __________ __________ in the __ direction or __________ __________ in the __ direction

Answer 4

Speeding Up, Negative

Slowing Down, Positive

Question 5

SI Unit for Acceleration is __________

Answer 5

m/s²

Question 6

SI Unit for Speed is __________

Answer 6

m/s

Question 7

Average velocity when undergoing uniform acceleration = (__________) / __________

Answer 7

(Vf + Vi)/2

Question 8

Value of g in SI Units is __________

Answer 8

9.8m/s²

Question 9

Instantaneous Velocity = V at a given __________ of time

Answer 9

Instant

Question 10

A vector has both __________ and __________

Answer 10

Magnitude and Direction

Question 11

A scalar has only __________

Answer 11

Magnitude

Question 12

Ignoring air resistance, the acceleration of all dropped objects is __________ __________.

Answer 12

The Same

Question 13

Ignoring air resistance, the displacement of a falling object is proportional to __________.

Answer 13

Time²

Question 14

Ignoring air resistance, an object thrown straight up has the same __________ on the way up as it does on the way down.

Answer 14

Acceleration

Question 15

Ignoring air resistance, an object thrown straight up has a velocity of __________ at the top of its rise.

Answer 15

0 m/s

Question 16

Ignoring air resistance, an object thrown straight up has an acceleration of magnitude __________ at the top of its rise.

Answer 16

9.8m/s²

Question 17

For an object thrown straight up into the air, the total displacement upon landing at the same elevation is __________.

Answer 17

0

Question 18

The slope of a velocity-time graph represents __________.

Answer 18

Average acceleration

Question 19

The slope of a position-time graph represents __________.

Answer 19

Average velocity

Question 20

The slope of a position-time² graph represents __________.

Answer 20

Average acceleration

Question 21

The slope of a tangent to a curved position-time graph represents __________.

Answer 21

Instantaneous velocity

Question 22

The area under a v-t graph represents __________.

Answer 22

Displacement

Question 23

The area under a position-time graph represents __________.

Answer 23

Nothing

Question 24

The area under a position-time² graph represents __________.

Answer 24

Nothing

Question 25

The area under an acceleration-time graph represents __________.

Answer 25

Change in velocity