Acceleration

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 taken

• velocity divided by the time taken

Which of the following is a unit for acceleration?

• km/s

• m/s²

• mi/hr

• cm

A negative acceleration means that your object is _____. 

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

Why does a car accelerate as it turns a corner at a constant speed?

• Its direction changes

• It doesn't

• It slows down

• Its speeds up

In each of the following cases, determine where the car has no acceleration ?

• A car shortly after a stoplight turns green.

• A car approaching a red light

• A car with the cruise control set at 80 km/h

• A car turning a corner at a constant speed

Slowing down is called

Choose all that apply.

• negative acceleration

• velocity

• speed

• deceleration

How can acceleration be zero?

• a car runs out of gas and slowly rolls to a stop

• a car decreases speed at a constant rate until it comes to rest

• car has constant speed and is travelling on a straight path

• the car travels a round trip and is back at the starting point

Which section of the graph shows acceleration?

• AB
• BC
• EF
• FG

Tags

NGSS.HS-PS2-1

What is happening at segment D?

• acceleration

• deceleration

• constant speed

• no motion/object at rest

Tags

NGSS.MS-PS3-1

What is happening at segment E?

• acceleration

• deceleration

• constant speed

• no motion/object at rest

Tags

NGSS.MS-PS3-1