Unit 2: Science

Question 1

Distance

Answer 1

The length of the whole route between two points

Question 2

Displacement

Answer 2

Combination of distance and direction

Question 3

Vector

Answer 3

Uses magnitude size and direction

Question 4

Scalar

Answer 4

Has magnitude, size and NO direction

Question 5

Motion

Answer 5

A change in position relative to the reference point

Question 6

Gravity

Answer 6

Attraction between two or more objects

Question 7

Friction

Answer 7

Force that opposes motion between any surfaces that are touching

Question 8

Force

Answer 8

The interaction between two objects/masses

Question 9

Speed

Answer 9

The distance travelled in a period of time

Question 10

Static Fricton

Answer 10

The friction experienced when individuals try to move a stationary object on a surface

Question 11

Rolling Friction

Answer 11

Acting on an object when rolling over a surface

Question 12

Sliding Friction

Answer 12

Acting on an object when sliding over a surface

Question 13

Fluid Friction

Answer 13

Acting on an object when moving through fluid

Question 14

Acceleration

Answer 14

A change in speed or direction

Question 15

Net Force

Answer 15

The total of all frictional forces

Question 16

Balanced Forces

Answer 16

Equal in magnitude
Opposite in direction
Equal to 0

Question 17

UnBalanced Forces

Answer 17

When total of all forces on an object are not equal to 0

Question 18

Example of Vector Quantities:

Answer 18

Gravity/Velocity

Question 19

Example of Scalar Quantities:

Answer 19

Mass/Speed

Question 20

On a velocity vs time graph, the slope of the line tells you

Answer 20

Rate of Aceleration

Question 21

On a position vs time graph the slope of the line tells you

Answer 21

The Velocity

Question 22

If an object is accelerating the forces on it are

Answer 22

Unbalanced