Acceleration , Equation of motion and Numericals

the rate at which speed or velocity changes

• acceleration

• average speed

• motion

• reference point

Is this a speed or acceleration graph?

• speed

• acceleration

What is happening at segment A?

• acceleration

• deceleration

• constant speed

• no motion/object at rest

What is this graph showing?

• Constant Speed
• Acceleration (speeding up)
• Deceleration (slowing down)
• No motion

What kind of acceleration is shown here?

• positive
• negative
• none
• varies

This is a velocity-time graph.  What is the object doing in segment A?

• Positive acceleration
• Negative acceleration
• Constant Velocity
• Not moving

What is happening between 3 seconds and 4 seconds?

• The object is accelerating

• The object is decelerating to a stop

• The object is returning to its original position

• The object is stationary

Which of the following is a unit for acceleration?

• km/s
• m/s²
• mi/hr
• ft

A negative acceleration means that your object is _____. 

• not accelerating
• not moving
• speeding up 
• slowing down 

A box sliding down an inclined plane attains a velocity of 27 m/s in 3 seconds from rest.  Find the acceleration.

• 30 m/s
• 24 m/s²
• 9 m/s²
• 81 km/hr