Forces and Motion

Question 1

What quantities is distance and speed

Answer 1

scalar - only have a magnitude

Question 2

what quantity is displacement and velocity

Answer 2

vector - magnitude and direction

Question 3

what is the equation for speed

Answer 3

speed(m/s) = distance(m) / time(s)

Question 4

what are the typical speed for :
walking, running and cycling, city driving, sound of air
and what factors do they depend on

Answer 4

walking 1.5 m/s
running 3 m/s
cycling 6 m/s
city driving 12 m/s
sound of air 330 m/s
they factors they depend on is age, fitness, terrain and distance

Question 5

what is velocity

Answer 5

the speed of an object in a given direction

Question 6

what happens to an object not travvling in a straight line and an object moving in a circle

Answer 6

not traveling in straight line - speed is constant, velocity changes because direction changes
circle motion - constantly changing direction so velocity constant changes
accelerates caused by force of gravity

Question 7

What is newtons first law

Answer 7

an object will remain in the same state of motion unless acted on by external force
velocity will only change if there’s a resultant force acting on it