Forces part 2 p2

Question 1

is distance scalar or vector?

Answer 1

scalar

(it’s how far an object moves)

Question 2

is displacement scalar or vector?

Answer 2

vector

(it’s the distance measured in a straight line, and the direction of that line)

Question 3

is speed scalar or vector?

Answer 3

scalar

(it doesn’t involve direction)

Question 4

is velocity scalar or vector?

Answer 4

vector

(it involves direction)

Question 5

what is velocity?

Answer 5

speed of an object in a given direction

(e.g. a car moving forward)

Question 6

what’s newtons first law?

Answer 6

objects don’t move or stay at the speed they were moving if a force doesn’t move it

Question 7

what’s newtons second law?

Answer 7

force, acceleration and mass are the same as resultant force

Question 8

what’s newtons third law?

Answer 8

when 2 objects touch the forces they exert and equal and opposite

Question 9

equation for resultant force:

Answer 9

mass x acceleration

Question 10

equation from stopping distance:

Answer 10

thinking + breaking distance

Question 11

what affects reaction time?

Answer 11

tiredness
drugs
alchohol
distractions

Question 12

what affects breaking distance?

Answer 12

wet roads
the brakes
the tyres