Chapter 3: 1d motion

Question 1

Is displacement a vector or a scalar?

Answer 1

Vector

Question 2

Is distance a vector or a scalar?

Answer 2

Scalar

Question 3

What are the units of distance and displacement?

Answer 3

Meters (m)

Question 4

What are the units of speed and velocity?

Answer 4

Meters per second (m/s)

Question 5

What are the units of acceleration?

Answer 5

Meters per second squared (m/s^2)

Question 6

How do you find the velocity if you have the displacement?

Answer 6

Take the derivative of the polynomial equation (distance with respect to time) or find the slope of the distance vs. time graph.

Question 7

How do you find the acceleration if you have the velocity?

Answer 7

Take the derivative of the polynomial equation (velocity with respect to time) or find the derivative of the velocity vs. time graph.

Question 8

How do you find the acceleration if you have the distance?

Answer 8

Take the second derivative of the polynomial equation of distance with respect to time.