Physics: Linear Motion

Question 1

What is displacement?

Answer 1

The length of a straight line between the initial position and the final position of an object.

Question 2

What is the displacement of a gecko that runs 2 m up a tree and then 3 m down?

Answer 2

1 m

Question 3

What is represented by a graph with position on the y-axis and time on the x-axis?

Answer 3

Velocity

Question 4

What is represented by a graph with velocity on the y-axis and time on the x-axis?

Answer 4

Acceleration

Question 5

What is the equation for displacement with constant acceleration?

Answer 5

ΔX = 1/2(V initial+V final(acceleration))x ΔT where is ΔX is displacement and ΔT is change in time.

Question 6

What is the equation for final velocity with constant acceleration?

Answer 6

final velocity=initial velocity+(acceleration x time interval)

Question 7

What is the equation for final velocity after any displacement?

Answer 7

final velocity^2=initial velocity^2 + (2 x acceleration x displacement)

Question 8

What is the equation for free fall velocity after a given time?

Answer 8

velocity final = 1/2gt^2 where g is acceleration due to gravity, and t is time