Mechanics

Question 0

v-t Graphs

Answer 0

Straight line=constant acceleration
Flat line=constant speed
Curve=acceleration
Area=distance travelled

Question 1

d-t Graphs

Answer 1

Straight line=constant speed
Flat=stationary
Curve=acceleration

Question 2

Balanced forces

Answer 2

No acceleration

Question 3

Object falling from great height:

Answer 3

Forces=weight, air resistance
Speed=at first, unbalanced force-just weight-so it accelerates. Then as it travels faster, air resistance builds and 2 forces become equal and it travels at constant speed (TERMINAL VELOCITY).

Question 4

v

Answer 4

d/t

Question 5

a

Answer 5

Change in speed/change in time