Midterm Quiz for Physics

Question 1

What is Physics?

Answer 1

Physics is the study of motion, space, time and everything in the world around us.

Question 2

What is another way of saying “an educated guess”?

Answer 2

Hypotheses

Question 3

What is an QUALITATIVE observation?

Answer 3

It is descriptive in nature, expressed in terms of language or in words.

Question 4

What is an QUANTITATIVE observation?

Answer 4

It refers to any information that can be quantified, counted or measured, and given a numerical value (#’s).

Question 5

The hypotheses must be…

Answer 5

Testable. It can be proven correct or wrong.

Question 6

What is an independent Variable?

Answer 6

The independent variable is the x-axis. It is the one be controlled or changed in an experiment.

Question 7

What an dependent variable?

Answer 7

The dependent variable is the y-axis. It is the one being tested in an experiment.

Question 8

Is physics applied mathematics?

Answer 8

No

Question 9

If the exponent in a scientific notation equation is positive, the decimal moves to the…

Answer 9

Right

Question 10

If the exponent in a scientific notation equation is negative, the decimal moves to the…

Answer 10

Left

Question 11

The ‘M’ in a scientific notation equation is referred to as the…

Answer 11

Coefficient

Question 12

Accuracy is…

Answer 12

The closeness of one measurement to the accepted measurement or value.

Question 13

Precision is…

Answer 13

How close the measurement are to each other.

Question 14

What is the acronym for remembering the metric system?

Answer 14

K ilo
H ecto
D eca
B ase/basic unit
d eci
C enti
M illi

Question 15

What are the three types of graphs?

Answer 15

Line graphs, bar graphs, circle graphs (AKA pie chart).

Question 16

How many variables does a line graph compare?

Answer 16

It compares two variables.

Question 17

Final minus initial is..

Answer 17

The displacement.

Question 18

When it comes to the distance you would just…

Answer 18

Add all the numbers given.

Question 19

When it comes to the displacement you would.

Answer 19

Find the distance from the starting point to the ending point.

Question 20

The equation for speed is…

Answer 20

Distance/Time

Question 21

When manipulating speed equations to solve for time you can just…

Answer 21

Switch it.

Question 22

How do you manipulate speed equations to solve for distance?

Answer 22

D=T*S

Question 23

What is instantaneous speed?

Answer 23

Speed at any instant of time, or in other words, the speed at a certain point in time.

Question 24

The equation for average speed is…

Answer 24

Average speed = Total Distance/Total Time

Question 25

What is velocity?

Answer 25

The rate at which an object changes its position.

Question 26

What is constant speed?

Answer 26

The speed and direction do not change.

Question 27

What is the equation for velocity?

Answer 27

Velocity = DeltaX (Displacement) -------------------------------- DeltaT (Time)

Question 28

Motion is Relative to a reference point (True/False)

Answer 28

True

Question 29

Motion depends on a point of view or frame of reference (True/False)

Answer 29

True

Question 30

The shorter the distance between each "*"...

Answer 30

The slower the speed.

Question 31

The longer the distance the distance between each "*"...

Answer 31

The faster the speed.

Question 32

The slope of a line on a Distance/Time graph represents...

Answer 32

Velocity m/s

Question 33

The slope of a line on a Velocity/Time graph represents...

Answer 33

Acceleration m/s²

Question 34

How do you know the velocity is positive on a Velocity/Time graph.

Answer 34

The line is on a positive quadrant.

Question 35

If the line is getting farther away from the x-axis it is...

Answer 35

Speeding up

Question 36

If the line is going towards the x-axis it is...

Answer 36

Slowing down