Science Midterm Review

3 m/s north is an example of a(n) ______.

• speed

• velocity

• time

• acceleration

An object in motion MUST be undergoing a change of...

• Velocity

• Position

• Acceleration

• direction

Tags

NGSS.MS-PS3-5

A softball pitcher throws a ball at 42 meters per second. If the batter is 18 meters from the pitcher, aproximately how much time does it take for the ball to reach the batter?

• 1.9 s

• 2.3 s

• 0.86 s

• 0.43 s

A cross country runner runs 10 km in 40 minutes. What is his average speed?

• 30 km/min

• 4 km/min

• 400 km/min

• 0.25 km/min

Find the acceleration of a car that goes from 32 m/s to 96 m/s in 8.0s.

• 8.0 m/s/s
• -8.0m/s/s
• 12 m/s/s
• 4m/s/s

A group of bike riders took a 4-hour trip. During the first 3 hours, they traveled a total of 50 km, but during the latest hour they only traveled only 10 km. What was the group's AVERAGE SPEED for the entire trip?

• 60 km/hr

• 40 km/hr

• 30 km/hr

• 15 km/hr

A runner goes around a 1 mile track. If they end up at their starting position, what is their distance traveled?

• 0 miles

• 1 mile

• 400 meters

• 1 kilometer

A runner goes around a 1 mile track. If they end up at their starting position, what is their displacement?

• o miles
• 1 mile
• 400 meters
• 1 kilometer

The space shuttle is flying at 2.0 km/hr and lands on the runway. It then slows down to 0.5 km/hr. If this takes 0.25hrs, what is your acceleration?

• -1.5 km/hr/hr

• -6 km/hr/hr

• 6 km/hr/hr

• 2 km/hr/hr

A car travels west for 240 km in 4 hr. What is the car's velocity?

• 60 km/hr west
• 0.06 km/hr west
• 960 km/hr West
• 236 km/hr West