1A.5 Newtons laws of motion

Question 1

explain how the reading on a balance would increase when a ball is added to a peaker of water (using newtons third law of motion)

Answer 1

if you drop a ball in water the water molecules would exert a force on the ball pushing it up so the ball would exert an equal and opposite force on the water pushing down. so the extra force exerted by the ball will increase the reading of the balance

Question 2

so how can changing densities change the push-down force of an object dropped in a beaker

Answer 2

the lower the density the lower the amounts of particles present therefore lower push-up force on the object so less force is exerted back by the object (n3 of motion)

Question 3

what does newtons first law states

Answer 3

an object will remain stationary or moving at constant velocity unless a resultant force acts on it

Question 4

what is newtons second law of motion

Answer 4

acceleration is directly proportional to resultant force and acceleration is inversely proportional to the mass

Question 5

newtons third law of motion

Answer 5

for every action, there is an equal and opposite reaction

Question 6

what happens when you run into a wall

Answer 6

the wall would exert an equal and opposite force on you pushing you both but back. since the wall is connected to the earth it the acceleration won’t be noticed since the earth has a huge mass