Physical Science Study Guide Part 1

Question 1

Accuracy

Answer 1

How correct a measurement is

Question 2

Precision

Answer 2

How specific the measurement is or how consistent they are with each other.

Question 3

Observation

Answer 3

Objective; based on the five senses, not opinion

Question 4

Inference

Answer 4

Subjective; a guess about an observation.

Question 5

Hypothesis

Answer 5

a testable prediction that attempts to answer a question

Question 6

Independent Variable

Answer 6

what is being purposely changed: what is being tested; the “cause”

Question 7

Dependent Variable

Answer 7

what is being measured; the data collected as a response; the “effect”

Question 8

Constant

Answer 8

factors that do not change in the experiment; conditions kept the same for all groups

Question 9

Control Group

Answer 9

the normal group used for comparison

Question 10

Quantitative

Answer 10

numerical data

Question 11

Qualitative

Answer 11

descriptive data

Question 12

Average Speed

Answer 12

total distance divided by total time

Question 13

Instantaneous Speed

Answer 13

the speed or velocity in one instant of time; “snapshot”

Question 14

Inertia

Question 15

Weight

Question 16

Newton’s 1st Law

Answer 16

An object will move at a constant velocity until and unbalanced forces acts upon it

Question 17

Newton’s 2nd Law

Answer 17

a net force acting on an object causes the object to accelerate in the direction of the net force

Question 18

Newton’s 3rd Law

Answer 18

every action has an equal and opposite reaction

Question 19

Kinetic Energy

Answer 19

kinetic energy is

Question 20

Potential Energy

Question 21

Mechanical Energy

Question 22

Conductor

Question 23

Insulator

Question 24

Work

Question 25

Power

Question 26

Circuit

Question 27

Voltage

Question 28

Resistance

Question 29

Current

Question 30

Wave

Question 31

Mechanical Wave

Question 32

Electromagnetic Wave

Question 33

Wavelength

Question 34

Period

Answer 34

Bloody Hell 😏