newton's 2nd law

Question 1

equation

Answer 1

f = ma

Question 2

acceleration

Answer 2

change in velocity / time

Question 3

how to measure time

Answer 3

stop clock

Question 4

how to measure velocity

Answer 4

use two light gates at a known distance

Question 5

method

Answer 5

release car from a fixed point on a slope
measure time taken between two points using stopwatch
measure change in velocity between two points
use equation acceleration = change in velocity / time
vary the force by adding masses to the end of the string from the car, repeat with increasing number of masses

Question 6

where do you move the masses from

Answer 6

the car to the pulley

Question 7

mass should be

Answer 7

constant

Question 8

the greater the mass, the greater the a

Answer 8

acceleration

Question 9

if the question asks about how the mass affects the acceleration you

Answer 9

change the mass on the car - not the force applied

Question 10

increased mass ______ acceleration

Answer 10

decreases

Question 11

mass and acceleration

Answer 11

are inversely proportional

Question 12

force and acceleration

Answer 12

are directly proportional

Question 13

control accuracy

Answer 13

same slope angle
same distance between light gates

Question 14

safety

Answer 14

someone needs to catch it at the end