PHYSICS PAPER 2 - TOPICS 5-6

Question 1

force is a …… quantity?

Answer 1

vector

Question 2

vector quantities include?

Answer 2

force, velocity and acceleration

Question 3

scalar quantities include?

Answer 3

speed, distance and mass

Question 4

contact forces include?

Answer 4

friction, air resistance and tension in ropes

Question 5

non-contact forces include?

Answer 5

magnetic force, gravitational force and electrostatic force

Question 6

what are the two different types of deformation?

Answer 6

elastic and inelastic

Question 7

what is deformation

Answer 7

an object changes shape

Question 8

elastic?

Answer 8

able to go back to original shape after force being removed

Question 9

inelastic?

Answer 9

cannot go back to original shape

Question 10

higher the spring constant means the ……. the material?

Answer 10

stiffer

Question 11

force and extension are..?

Answer 11

directly proportional

Question 12

nti lit reaches the ….?

Answer 12

limit of proportionality

Question 13

moment definition?

Answer 13

the rotational or turning effect of a force

Question 14

what is newtons first law?

Answer 14

a resultant force is required to change the motion of an object

Question 15

what is newtons second law?

Answer 15

non-zero resultant force acts on an object - this will cause the object to accelerate

Question 16

inertia?

Answer 16

the tendency for the motion of the object to remain unchanged

Question 17

newtons third law?

Answer 17

when two objects interact, the forces they exert on each other are equal and opposite