Unit 2 TEST 7th grade Force and Motion

What is the formula for speed?

• Speed = distance / time

• Speed = time / distance

• Speed = distance x time

• Speed = time x distance

Tags

NGSS.MS-PS3-1

Which of the following is an example of a speed unit?

• m/s

• km

• miles

• meters

Tags

NGSS.4-PS3-1

What is the formula for average velocity?

• Average Velocity = displacement (f - i) / time + direction

• Average Velocity = total distance / time

• Average Velocity = distance / time

• Average Velocity = speed x time

Convert 45 minutes into a decimal.

• 0.75

• 0.45

• 0.5

• 0.9

What information is needed to calculate speed?

• Distance and time

• Displacement and direction

• Velocity and time

• Speed and direction

Tags

NGSS.MS-PS3-1

How far will a soccer player run in 240 minutes if she is running at 6 km/h?

• 24 km

• 18 km

• 36 km

• 12 km

How far will an ice skater move in 40 minutes if she is skating at 5 km/h?

• 3.3 km

• 5 km

• 2 km

• 4 km

Tags

NGSS.3-PS2-2

If a train travels 840 km in 14 hours, how far does it travel in 4 hours at the same speed?

• 240 km

• 200 km

• 300 km

• 180 km

Tags

NGSS.3-PS2-2

What is the displacement of a student who walks 100 meters west from the gym to the library and then returns halfway?

• 50 meters west

• 100 meters west

• 0 meters

• 50 meters east

What is the displacement of a student who walks 120 meters east from the library to the gym and then returns to the library?

• 0 meters

• 120 meters east

• 120 meters west

• 60 meters east