Forces

Question 1

What’s a force?

Answer 1

Push or pull that occurs when two or more objects interact

Question 2

Two types of forces:

Answer 2

Contact

Non contact

Question 3

Non-contact forces

Answer 3

forces that can act on objects that are not touching

Question 4

Contact forces

Answer 4

Can only act on objects that are touching

Question 5

Contact forces

Answer 5

Tension
Friction
Air resistance

Question 6

Non contact forces

Answer 6

Gravity
Magnetism
Electrostatic force

Question 7

Newton meter/force meter

Answer 7

Used to measure force

Question 8

Force is measured in

Answer 8

Newtons

Question 9

Weight

Answer 9

Pull things down

Question 10

Air resistance

Answer 10

Acts against anything moving through the air

Question 11

Friction

Answer 11

Acts against anything moving

Question 12

Upthrust

Answer 12

Keep things afloat

Question 13

A force can change the…

Answer 13

Shape of an object or change it’s state the rest or motion

Question 14

Resultant force

Answer 14

Sum of all the forces acting on an object

Question 15

To calculate the resultant force

Answer 15

Subtract smaller with bigger force

Question 16

When the resultant force of an object is 0…

Answer 16

Objects is stationary or the object is already moving then the object will continue to move at a constant speed and same direction

Question 17

Unbalanced forces

Answer 17

When the resultant force on an object isn’t 0 the force acting on an object aren’t balanced
Movement depends on the size and direction of the resultant force

Question 18

Change in velocity (m/s)

Answer 18

Acceleration (m/s squared) X time taken (s)

Question 19

Speed(m/s)

Answer 19

Distance (m) X time(s)

Question 20

Motion sensor

Answer 20

Linked to a computer

Used to measure velocity change

Question 21

Displacement

Answer 21

Distance in a specific direction