Motion And Forces - 8th Grade

Question 1

Distance or length measured in one direction

Answer 1

Dimension

Question 2

Difference between initial position and final position of an object

Answer 2

Displacement

Question 3

Process of changing position

Answer 3

Motion

Question 4

Starting point you choose to describe the location, or position, of an object

Answer 4

Reference point

Question 5

Objects distance and direction from a reference point

Answer 5

Position

Question 6

Compared to

Answer 6

Relative

Question 7

To indicate or identify

Answer 7

Specify

Question 8

Distance divided by time

Answer 8

Average speed

Question 9

Rate of change of position in which he same distance is traveled each second

Answer 9

Constant speed

Question 10

Speed at a specific instant in time

Answer 10

Instantaneous speed

Question 11

Distance an object travels or unit of Time

Answer 11

Speed

Question 12

Speed and direction of a moving object

Answer 12

Velocity

Question 13

Measure of the change in velocity during a period of time

Answer 13

Acceleration

Question 14

Limit, divide, serve rate; x-axis on a graph

Answer 14

Horizontal

Question 15

Ov these, y-axis in a graph

Answer 15

Vertical

Question 16

A push or a pull on an object by another object touching it

Answer 16

Contact force

Question 17

A push or pull of an object

Answer 17

Force

Question 18

Force that resists the motion of two surfaces that are touching

Answer 18

Friction

Question 19

Attractive force that exists between al objects that have mass

Answer 19

Gravity

Question 20

Amount of matter in an object

Answer 20

Mass

Question 21

A force of one object can apply to another object without touching it

Answer 21

No contact force

Question 22

Important or momentous

Answer 22

Significant

Question 23

At rest of having no motion

Answer 23

Static

Question 24

Gravitational force exerted on an object

Answer 24

Weight

Question 25

Combined forces from a net force of zero

Answer 25

Balanced force

Question 26

Tendency of an object to resist a change in motion

Answer 26

Interview

Question 27

Combination of all the forces acting on an object

Answer 27

Net force

Question 28

The motion of an object does not change if e net force on an object is zero

Answer 28

Newton’s first law of motion

Question 29

Combined forces that form a net force that is not zero

Answer 29

Unbalanced forces

Question 30

A force in circular motion that acts perpendicular to he direction of motion toward the center of the circle

Answer 30

Centripetal force

Question 31

Any motion in which an object is moving along a curved path

Answer 31

Circular motion

Question 32

Acceleration is equal to the net force exerted on the object divided by the objects mass

Answer 32

Newton’s second law of motion

Question 33

Forces that two objects apply to each other

Answer 33

Force pair

Question 34

Total momentum of a group of objects remains the same unless outside forces act on the same objects

Answer 34

Law of conservation of momentum

Question 35

Measure of how hard it is to stop a moving object

Answer 35

Momentum

Question 36

For very action there is an equal and opposite reaction

Answer 36

Newton’s third law of motion