CA#3: SVA and Calculating Speed Review

What formula can we use to find speed?

• Speed = distance/time

• Speed = distance X time

• Speed = mass X acceleration

• Speed = mass/acceleration

What is the speed of a turtle that travels 10 miles in 5 hours?

• 50 miles/hour

• 2 miles/hour

• 5 miles/hour

• 15 miles/hour

The geese fly 23 mph to the south when they migrate for the winter.

• speed

• velocity

• acceleration

Tags

NGSS.MS-PS3-1

Changes in our speed, direction or both are called _________.

• gravity

• changes

• acceleration

• displacement

You ride your bike in a straight line at a constant speed of 10 km/h.

• Acceleration occurred because speed increased.

• Acceleration did not occur because neither speed nor direction changed.

• Acceleration occurred because you changed directions.

• Acceleration occurred because speed decreased.

When you know both the speed and direction of an object's motion, you know the...

• average speed of the object
• acceleration of the object
• distance the object has traveled
• velocity of the object

You are riding your bike at 9 km/h. Ten minutes later, your speed is 6 km/h.

• Acceleration occurred because speed increased.
• Acceleration occurred because speed decreased.
• Acceleration occurred because you changed directions.

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Juan ran 72 m across the football field in 8 seconds. What was his speed?

• 8 m/s

• 576 m/s

• 7 m

• 9 m/s

Steve runs 20 m North in 4 seconds. What is his velocity

• 5 m/s

• 4 m/s south

• 5 m/s south

• 5 m/s north

Mr. Rudman drives his race car at a speed of 300 miles per hour. What distance and time could have been used to find his speed?

• 300 miles in 2 hours

• 60 miles in 20 hours

• 30 miles in 20 hours

• 600 miles in 2 hours