module 5

Question 1

defined as a vector measurement of the rate and direction of motion.
Put simply, velocity is the speed at which something moves in one direction. The speed
of a car traveling north on a major freeway and the speed a rocket launching into space
can both be measured using

Answer 1

Velocity

Question 2

As you might have guessed, the scalar (absolute value) magnitude of the velocity
vector is the

Answer 2

speed of motion.

Question 3

defined as a vector quantity that indicates the rate of change of
velocity. It has dimensions of length and time over time. Acceleration is often referred to
as “speeding up”, but it really measures changes in velocity.

Answer 3

Acceleration