Unit 5: unbalanced forces

Question 1

what’s the difference between net force, mass, and acceleration

Answer 1

• Net force is the total amount of force
• mass is the amount of stuff
• acceleration is the change of rate
  (net force CAUSES acceleration)

Question 2

Am I accelerating?
- my car is turning

Answer 2

yes

Question 3

Am I accelerating?
- I am using cruise control

Answer 3

no

Question 4

Am I accelerating?
- I am slowing down

Answer 4

yes

Question 5

What does F = ma (the letters)

Answer 5

Net Force = (mass)(acceleration)

Question 6

what is F = ma

Question 7

force and acceleration are ____ proportional

Answer 7

directly

Question 8

Mass and acceleration are ___ proportional

Answer 8

inversely

Question 9

when net force acts on a body it will accelerate in the ___ of force

Answer 9

direction

Question 10

whats the label for acceleration

Answer 10

m/s²

Question 11

You have a 2kg bucket, lifted by a rope with 25N of tension. Whats the net force of the bucket?

Answer 11

5.4N up

Question 12

You have a 2kg bucket, lifted by a rope with 25N of tension.
Whats the bucket’s acceleration?

Answer 12

2.7 m/s^2

Question 13

what happens if you halve the mass? And what does this mean

Answer 13

you double the acceleration. This means that the acceleration is inversely proportional