Equations Of Motion

Question 1

What is the equation for constant velocity?

Answer 1

Displacement over time

Question 2

What is the formula for average velocity?

Answer 2

Total displacement over total time

Question 3

What is the formula for average velocity when travelling at a constant acceleration?

Answer 3

Sum of initial velocity and final velocity divided by two

Question 4

What are the four equations of motion?

Answer 4

Vf = Vi + aΔt
Vf^2 = Vi^2 + 2aΔx
Δx = ViΔt + 1/2aΔt^2
Δx = 1/2(Vi + Vf) Δt

Question 5

Which equation of motion eliminates displacement?

Answer 5

Vf = Vi + aΔt

Question 6

Which equation eliminates time?

Answer 6

Vf^2 = Vi^2 + 2aΔx

Question 7

Which equation eliminates final velocity?

Answer 7

Δx = ViΔt + 1/2aΔt^2

Question 8

Which equation eliminates acceleration?

Answer 8

Δx = 1/2(Vi + Vf) Δt

Question 9

When do the equations of motion apply?

Answer 9

For objects moving in a straight line with a constant acceleration

Question 10

What five factors do the equations of motion consist of?

Answer 10

Vi initial velocity
Vf final velocity 
A acceleration
Δx displacement
Δt time elapsed

Question 11

What happens if your question involves multiple accelerations?

Answer 11

Divide the stages of the question into separate equations

Question 12

What information (in these separate calculations) can be transferred?

Answer 12

The final velocity of the previous section will become the initial velocity of the next section