Acceleration

A roller coasters accelerates from an initial velocity of of 6.0 m/s to a final velocity of 70 m/s over 4 seconds.  What's the acceleration?

• 24 m/s²
• 18 m/s²
• 16 m/s²
• 16 m/s

Tags

NGSS.HS-PS2-1

A car starts from rest at a stop light and reaches 20 m/s in 3.5 s. Determine the acceleration of the car.

• 2.2m/s²
• 7.0m/s²
• 5.7m/s²
• 70m/s²

Tags

NGSS.HS-PS2-1

Acceleration is defined as the CHANGE in 

• time it takes for one place to move to another place. 
• velocity of an object.
• distance divided by the time interval 
• velocity divided by the time interval 

Tags

NGSS.HS-PS2-1

Acceleration only takes place when things speed up. 

• True
• False

Tags

NGSS.HS-PS2-1

You are walking in a straight line at a consistent speed. Do you have acceleration? 

• no
• yes 

Tags

NGSS.HS-PS2-1

As you walk you make a right turn. Do you have acceleration? 

• yes 
• no

Tags

NGSS.HS-PS2-1

You are walking and start to slow down. Do you have acceleration? 

• yes
• no 

Tags

NGSS.MS-PS2-2

A drag racer accelerated from 0 m/s to 200 m/s in 5 s.  What was the acceleration?

• 0 m/s
• 40 m/s²
• -40 m/s²
• 40 m/s

Tags

NGSS.HS-PS2-1

What is Acceleration?

• How long it takes me to win at fortnite

• The direction of an object

• A change in Motion

• How fast something is moving

Tags

NGSS.HS-PS2-1

If a car going 30 m/s approaches a traffic jam and the driver hits the brakes, how long will it take for them to slow to a stop with at a rate of -6.25m/s²? 
Which equation will help you solve this problem?

• V_f = (a•t) + v_i
• V_i = v_f- (a•t)
• a = (v_f-v_i)/t
• t = (v_f-v_i)/a

Tags

NGSS.MS-PS2-2