PHYS Intro

Acceleration is a Vector

• True

• False

Acceleration formula

• $a=\frac{\Delta t}{\Delta v}$

• $a=\frac{\Delta d}{\Delta t}$

• $a=\sqrt{b^2-c^2}$

• $a=\frac{\Delta v}{\Delta t}$

Speed is a ______ quantity

How many significant figures is 0.023 m/s

• 3

• 2

• 4

What is happening in this Velocity vs Time graph?

• slowing down and constant direction

• speeding up and changing direction

• staying constant in speed and direction

• slows down, changes direction, and speeds up

In a position vs time graph, what does this mean?

• the object is at rest (not moving)

• the object is moving at a constant speed

• the object is changing positions