Walker Physics Ch 1-3 study deck

A golf ball accelerates off a tee at 15m/s², changing its velocity from 0m/s to 50 m/s down the fairway. How long did it take the golf ball to accelerate?

• 750 seconds

• 35 seconds

• 0.3 seconds

• 3.3 seconds

A roller coaster 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

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

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 

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

• Its direction changes

• It doesn't

• It slows down

• Its speeds up

Which graph represents the greatest acceleration?

• A
• B
• C
• D

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

• A car speeds up after a stoplight turns green.

• A car slows down as it approaches a red light

• A car with the cruise control set at 80 km/h going down a straight highway

• A car turning a curve at a constant speed

When are you undergoing an acceleration in a car? (Choose all that are correct)

• speed up

• slow down

• make turns

• constant speed

A fighter jet goes from +100 m/s to + 230 m/s in a time of 10 s. What was its acceleration?

• -10 m/s²

• +33 m/s²

• -23 m/s²

• +13 m/s²

A negative acceleration means that your object is  

• constant

• speeding up

• at rest

• slowing down