newtons laws

Question 1

what is a force

Answer 1

push or a pull

Question 2

what is newtons second law/ law of acceleration

Answer 2

acceleration of body is proportional to the force causing it, acceleration take place in the direction in which the force acts

Question 3

newtons first law / law of inertia

Answer 3

a body continues in a state of rest or uniform velocity unless acted upon by an external force

Question 4

newtons third law/ law of action reaction

Answer 4

for every action there is an equal and opposite reaction

Question 5

example of newtons first law/ law of inertia

Answer 5

football is in a state of rest on the penalty spot until acted upon by the external force of a players foot

Question 6

example of newtons second law/ law of acceleration

Answer 6

acceleration of the rock is proportional to the force applied to it by the performer, and the rock accelerates in the direction in which performer applied force to it

Question 7

example of newtons third law/ law of action reaction

Answer 7

as the high jumper applies force to the ground, the ground applies an equal and opposite force back to the high jumpers leg allowing them to jump

Question 8

what is the center of mass

Answer 8

point at which body is balanced in all directions

Question 9

what is the base of support

Answer 9

point of contact

Question 10

line of gravity

Answer 10

center of mass to floor

Question 11

what increases the stability of someone

Answer 11

center of mas = lower
line of gravity = inside base of support
base of support = more contact

Question 12

advantages of newtons laws

Answer 12

• can be used to make someone stable for example a rugby scrum
• being unstable creates momentum