Everything from our Physics books (term 1a-1b)

Question 1

What is newtons third law?

Answer 1

When two objects push or pull each other, they exert equal and opposite forces on one another.

Question 2

What is friction?

Answer 2

Friction is a force that opposes the motion of any two surfaces in contact with each other.

Question 3

What is the motive force?

Answer 3

The power of the engine is a motive force.

Question 4

What is another word for upthrust?

Answer 4

Normal force

Question 5

What is Hooke’s law?

Answer 5

Extension is directly proportional to the force applied.

Question 6

MASS………………..

Answer 6

ALWAYS STAYS THE SAME.

Question 7

Example of contact is…

Answer 7

Air resistance .

Question 8

Example of a non-contact is…

Answer 8

Magnet and Gravity.

Question 9

A scaler….

Answer 9

brings magnitude only.

Question 10

A vector….

Answer 10

is magnitude with a direction.

Question 11

What does magnitude mean?

Answer 11

The amount of something.

Question 12

Forces that act in the same direction….

Answer 12

can be added together.

Question 13

Forces that act opposite of each other must be….

Answer 13

taken away.

Question 14

Forces that act vertically or horizontally….

Answer 14

CANNOT be added or taken away.

Question 15

Moving objects have….

Answer 15

zero resultant force.

Question 16

Stationary objects have….

Answer 16

non-zero resultant force.

Question 17

When stretching a string it stores….

Answer 17

elastic potential energy.

Question 18

How do you get weight?

Answer 18

Mass x Gravity

Question 19

How do you get force?

Answer 19

Mass x Acceleration

Question 20

Hooke’s law (formula)

Answer 20

Spring Constant x Extension

Question 21

How do you get direction?

Answer 21

Speed x Time

Question 22

How do you get momentum?

Answer 22

Mass x Velocity

Question 23

What is momentum?

Answer 23

It’s a relationship between mass and velocity.

Question 24

When hitting a stick onto a table, what happens to the energy?

Answer 24

It becomes sound energy.

Question 25

What is the formula of how much is work done

Answer 25

Force x Distance

Question 26

What is gravitational potential energy?

Answer 26

Any object that is raised above the ground will have gravitational potential energy.

Question 27

What is the gravitational potential energy formula?

Answer 27

Gravitational Field Strength x Height

Question 28

Force

Answer 28

Newtons

Question 29

Mass

Answer 29

Kilograms

Question 30

Acceleration

Answer 30

Meters/per second per second

Question 31

Spring Constant

Answer 31

N/m

Question 32

Extension

Answer 32

Meters

Question 33

Direction

Answer 33

Km

Question 34

Speed

Answer 34

Km/s

Question 35

Time

Answer 35

Seconds

Question 36

Work done

Answer 36

Joules

Question 37

Distance

Answer 37

Meters

Question 38

Gravitational Potential Energy

Answer 38

GPE

Question 39

Gravitational Feild Strength

Answer 39

g

Question 40

Ep

Answer 40

Potential Energy

Question 41

Ek

Answer 41

Kinetic Energy