forces

Question 1

scalar

Answer 1

only size
-distance
- speed
- time
- mass
- pressure

Question 2

vector

Answer 2

size and direction
represented by an -> and +/-
- displacement
- velocity
- wright
- force
- acceleration
- momentum

Question 3

distance vs displacement

Answer 3

displacement - distance from a start point to the end directly

Question 4

forces

Answer 4

• drag
• friction
  – weight
• upthrust
• thrust
• tension
  – magnetic
  – electrostatic
• contact force
• lift
  (NEWTONS)

Question 5

force diagrams

Answer 5

use an arrow that TOUCHES the point where the force acts

Question 6

newtons laws

Answer 6

forces can affect objects in motion
- change direction
- accelerate
- stationary
- constant speed

Question 7

newtons 1st law

Answer 7

if there is zero resultant force acting on an object it will either stay stationary or continue to move at a constant speed in a straight line

Question 8

newtons 2nd law

Answer 8

if there is a resultant force (unbalanced) the object will speed up/slow down depending on the direction of the resultant force and the direction it was moving before force is applied

Question 9

resultant force

Answer 9

same direction = speed up
opposite = slow down
work out using f= ma

Question 10

resultant force (N)

Answer 10

mass(kg) x acceleration (m/s^2)