(15)essential physical concepts

Question 1

velocity

Answer 1

if a particle is moving along the x axis the speed is

Question 2

acceleration

Answer 2

the rate of change in velocity within a certain amount of time

Question 3

linear momentum.

Answer 3

the product of mass and velocity

Question 4

work

Answer 4

work is done to achieve motion against the opposing force

Question 5

energy

Answer 5

capacity to do work

Question 6

force

Answer 6

force = N Kg m s-2

Question 7

conversion between electron volts and joules

Answer 7

1eV = 1.602x-19 J