8th grade Science Unit one Vocabulary

Question 1

The change in velocity

Answer 1

Acceleration

Question 2

Total distance of time divided by total time.

Answer 2

Average Speed

Question 3

The sides on a graph.
The x represents an independent variable
the y represents a dependent variable

Answer 3

Axis

Question 4

When an object is changing in direction but not speed.

Answer 4

Centripetal acceleration

Question 5

Variables that could prove the experiment invalid. Variables that were not accounted for and affect the relationship and results of an experiment and variables.

Answer 5

confounding variable

Question 6

Remaining the same or steady. The same throughout and does not change.

Answer 6

Constant

Question 7

the speed at any point is the same at every other point. The speed remains the same throughout the entire time. (This would be indicated by a straight line on a motion graph) the same distance is traveled per unit time.

Answer 7

Constant Speed

Question 8

group that receives no treatment in an experiment.
Used to compare.

Answer 8

Control Group

Question 9

The variable that is measured and is expected to change.

Answer 9

Dependent Variable

Question 10

the path that something takes.
The way it goes or faces.
Ex:
North South East Or West

Answer 10

Direction

Question 11

A graph that shows the relationship between Distance and time. The x-axis is time the y-axis is distance.
Amount traveled per time. Line graphs where distance is plotted against time can show the motion of an object

Answer 11

Distance time graph

Question 12

A process which can either support or reject your hypothesis. Done in order to answer a question.

Answer 12

Experiment

Question 13

An educated guess for a scientific question. Can either be supported or rejected by an experiment.

Answer 13

Hypothesis

Question 14

The Variable that is controlled or changed by the scientist.

Answer 14

Independent Variable

Question 15

Speed at a specific moment in time.

Answer 15

Instantaneous Speed

Question 16

The AMOUNT or maximum extent of something.

Answer 16

Magnitude

Question 17

process of changing position relative to a reference point. Process of changing distance from another object or reference point.

Answer 17

Motion

Question 18

An object slowing down and an acceleration that is in the opposite direction of the velocity

Answer 18

Negative Acceleration

Question 19

A specific place where something is located. Location.

Answer 19

Position

Question 20

An indicator that orients you. Compare distance or location to this point. place or object used for comparison to determine if something is in motion.

Answer 20

Reference point

Question 21

A measure that includes a magnitude and a unit

Answer 21

Scalar Measure

Question 22

Correlation of two sets of data or variables. Points on a graph.

Answer 22

Scatterplot graph

Question 23

a question that may lead to a hypothesis and help us in. answering (or figuring out) the reason for some observation

Answer 23

Scientific Question

Question 24

The measure of the distance and object travels per unit time. The rate at which something travels a certain distance in a certain amount of time.

Answer 24

Speed

Question 25

Shows how a speed of a moving object changes with time. When Velocity is plotted against time it shows the acceleration of the object.

Answer 25

Speed Time graph

Question 26

A standard used for making comparisons in measurements. Used to label magnitudes.

Answer 26

Unit

Question 27

A measure that consists of a magnitude unit and a direction

Answer 27

Vector Measure

Question 28

When you know both the speed and direction of an object’s motion, you know the __________of the object. (Speed in a given direction)

Answer 28

Velocity