Accelaration

Is a coaster making a turn accelerating?

• Of course.
• Not actually.

Tags

NGSS.HS-PS2-1

Acceleration equalls to change in velocity...

• divided by change in acceleration.
• multiplied by change in time.
• devided by change in time.
• substracted by change in time.

Tags

NGSS.HS-PS2-1

You add 2 m/s to the velocity of an object for each second. What is the acceleration?

• +2m/s²
• -2m/s
• +4m/s²
• -1m/s

Tags

NGSS.HS-PS2-1

  A car slows down in positive (+)  direction, it causes...

• negative velocity (-v).
• positive acceleration (+a).
• negative  acceleration (-a).
• positive velocity (+v).

Tags

NGSS.HS-PS2-1

With what change in velocity (Δv) equals to?

• v_f + v_i 
• v_f – v_i 
• v_i – v_f
• v_i+v_f

Tags

NGSS.HS-PS2-2

On the following velocity versus time graph, from 0 to 3 seconds the acceleration of the object is:

• no acceleration
• Positive
  
• Negative
• Something undefinied

Tags

NGSS.HS-PS2-1

What does the position versus time graph look like?

• A curve like a frown.
• A curve like smile.
• A linear.
• Something undefined.

What does -1 m/s² of car mean ? The velocity changes by...

• -1m/s²  every second
• 1m/s every second
• 1m/s² every second
• -1 m/s every second

Tags

NGSS.HS-PS2-1

What is acceleration...?

• The rate of change of acceleration.
• The rate of change of time.
• The rate of change of velocity.
• The rate of change of distance.

Tags

NGSS.HS-PS2-1

Select the correct example in which the object is accelerating.

• a  stationary ball 
• a telephone ringing
• a car with constant velocity
• a ball rolling uphill

Tags

NGSS.HS-PS2-1