2Q4W 6th Grade Science

Janine hits a hockey puck across an ice rink. The distance between the puck and Janine for the first ten seconds after she hits it is graphed below.

Judging from the graph, which of the following statements is true?

• The hockey puck moved at a constant speed away from Janine.

• The hockey puck's speed increased as it moved away from Janine.

• The hockey puck moved at a constant speed toward Janine.

• The hockey puck's speed decreased as it moved away from Janine.

Tags

NGSS.MS-PS3-1

A jogger in a race ran 30 kilometers in 2 hours. What was the average speed of the jogger?

• 15 kilometers/hour

• 0.067 hours/kilometer

• 15 hours/mile

• 0.067 miles/hour

Starting from his house, Reid rode his bike 300 m to the north, then 100 m to the east.

In the given diagrams, the height and width of each square is 100 m.

Which of the following diagrams shows Reid's path?

• Y

• X

• W

• Z

What formula is used to calculate average speed?

• average speed = total time ÷ total force

• average speed = total time ÷ total direction

• average speed = total area ÷ total force

• average speed = total distance ÷ total time

Emma went for a hike that took her a total of 2.5 hours to complete. She traveled more slowly through some areas of the hiking trail than through others. The graph below shows the distance that Emma traveled with time.

What was Emma's average speed on her hike?

• 5.0 km/hr.

• 2.5 km/hr.

• 2.0 km/hr.

• 0.5 km/hr.

Tags

NGSS.MS-PS3-1

As part of a science experiment, Jenny recorded the distance a slug moved during a 12 second period. Her results are shown in the graph.

According to the graph, what was the average speed of the slug from 2 seconds to 8 seconds?

• 1 cm/s

• 2 cm/s

• 0 cm/s

• 3 cm/s

Tags

NGSS.MS-PS3-1

A bus travels 10 km in 30 minutes. What is the average speed of the bus?

• 20 km/h

• 30 km/h

• 40 km/h

• 50 km/h

A student hits a baseball ball three times. Another student records the distance, the amount of time the ball travels, and the average speed in the table shown below.

What was the speed of baseball #3?

• 10 m/ s

• 15 m/ s

• 25 m/ s

• 27.5 m/s

A student collected data about the motion of a toy bus on a straight track and then recorded the data in the graph below.

Which of these accurately describes the motion of the toy bus?

• The toy bus slows down while going forward and then moves backward.

• The toy bus speeds up while going forward and then slows down.

• The toy bus moves forward at a constant speed, slows down, and then stops.

• The toy bus moves forward at an increasing speed, stops, and then moves forward.

Tags

NGSS.MS-PS3-1

Which segment of Leroy's run does he stop?

• between hour 4 and 5

• between hour 3 and 4

• between hour 2 and 3

• between hour 1 and 2

Tags

NGSS.MS-PS3-1