2018 Mod9

Question 1

Define the following terms:

A. reference point

Answer 1

A Point against which position is measured

Question 2

B. Vector quantity

Answer 2

Hey physical measurement that contains directional information

Question 3

C. Scaler quantity

Answer 3

Hey physical measurement that does not contain directional information

Question 4

D. Acceleration

Answer 4

The time rate of change of an object’s velocity

Question 5

E. Free fall

Answer 5

From the motion of an object when is falling slowly under the influence of gravity

Question 6

If an objects motion does not change relative to a reference point is it in motion relative to that reference point

Answer 6

No

Question 7

Hey glass of water sits on the counter. Is it in motion?

Answer 7

Depends on the reference point you use

Question 8

Hey child is in an innertube and I still like is that motion does not change relative to a tree on the shore he watches two girls jogging on the shores like the girls are keep in perfect peace with each other. Neither is pulling ahead of the other nor falling behind of the other.

A relative to whom is the child in motion.

B. Relative to whom is the first Girl in motion

C. Relative to whom is the second girl not in motion?

Answer 8

A. The girls.
b. the child.
C. The first girl

Question 9

Label each quantity as a victor or scaler quantity. Also identified the speed, distance, velocity, acceleration, or none of these.
A. 10 m
B. 1.2 m/sec2 east
C. 3.4  feet/hour and slowing
D. 56 L
E. 2.2 miles/minute west
F. 2.2 mm/year

Answer 9

A. Scaler, distance
B. Victor, acceleration
C. Scaler, speed
D. Scaler, none of these
E. Victor, velocity
F. Scaler, speed

Question 10

Jim is traveling for 15 minutes with a constant velocity of 12 mph west what is the exhilaration

Answer 10

Zero

Question 11

Hey very picky physicist it state that is impossible for any object to expand freefall near the earths surface. Why is this physicist technically correct

Answer 11

Air resistance affects objects falling in the air

Question 12

Even though he physicist in question 12 is technically correct why do we go ahead and assume that heavy objects in our in freefall when they are near the surface of the earth

Answer 12

Because of heavy objects push through the air a lot easier than smart objects does the effective air is the sense is so minor it doesn’t matter

Question 13

A long vertical glass tube contains a feather in a minute. All the air is pumped out, and the tube is inverted, causing the penny in the feather to fuck which hits the bottom first? The feather

Answer 13

Neither