Motion Yr 10 Science

Question 1

Define distance

Answer 1

Distance is the total length of the path taken during the change in position of an object

Question 2

Define displacement

Answer 2

Displacement is the straight line distance between two points in a given direction

Question 3

Define velocity

Answer 3

Velocity is a measure of the time rate of displacement. Velocity = displacement over time

Question 4

Define average speed

Answer 4

Average speed is a measure of how fast something moves overall

Question 5

Define instantaneous speed

Answer 5

Instantaneous speed is the speed at a particular instant

Question 6

Define scalar quantity

Answer 6

A scalar quantity has only magnitude

Question 7

Define a vector quantity

Answer 7

A vector quantity has magnitude and direction

Question 8

Scalar speed vector is?

Answer 8

Velocity

Question 9

Scalar distance vector is?

Answer 9

Displacement

Question 10

Scalar mass vector is?

Answer 10

Weight

Question 11

Scalar temperature vector is.

Answer 11

Force

Question 12

Scalar is time vector is?

Answer 12

Acceleration

Question 13

Define speed

Answer 13

Speed is a measure of the time rate at which an object moves over a distance. Speed = distance over time

Question 14

Click to open
What quantities are scalar or vectors?
Speed
Velocity
Temperature 
Distance
Acceleration 
Force

Answer 14

Speed: scalar 
Velocity: vector 
Temperature: scalar 
Distance: scalar 
Acceleration: vector 
Force: vector

Question 15

What is Newton’s first law? What does it do + example

Answer 15

Law of Ineitia.
Everything will remain doing what it is doing unless an external force acts on it.

Example: in the car, you go the same speed as the car. When the car suddenly stops, you move forward

Question 16

What is newtons 2nd law? What does it do + example

Answer 16

F=ma

The velocity of an object changes when it is subjected to an external force.

Example: pushing a trolley

Question 17

What is newtons 3rd law? What does it do +example

Answer 17

For every action there is an opposite and equal reaction.

Example: Swimming, you push the water back and it pushes you forward

Question 18

V (speed) =

Answer 18

V= d/t

Speed = distance/time

Question 19

D (distance) =

Answer 19

D= vxt

Distance = speed x time

Question 20

T (time) =

Answer 20

T= d/v

Time= distance/speed

Question 21

What is speed?

Answer 21

Speed is a measure of the time rate at which an object moves over a distance

Question 22

Define reaction time

Answer 22

The length of time taken for a person or system to respond to a given event

Question 23

Define reaction distance

Answer 23

Reaction distance is how far your car travels in the time it takes the driver to react to a hazard