Unit 5 Review :)

Jenna ran around the school's track with an average speed of 4 km/h. How can Jill get a higher average speed than Jenna?

• She can run half the distance in half the amount of time.

• She can run the same distance in a longer amount of time.

• She can run twice the distance in twice the amount of time.

• She can run the same distance in a shorter amount of time.

The graph below shows the acceleration of a motorcycle.

What is the average acceleration of the motorcycle during the 4 second to 5 second time interval?

• 0 m/s²

• 1 m/s²

• 2 m/s²

• 4 m/s²

Tags

NGSS.MS-PS3-1

Use the graph below to answer any questions that follow. The graph represents the motion of an object.

In which section of the graph is the magnitude of the acceleration the greatest?

• AB

• BC

• CD

• DE

Tags

NGSS.MS-PS3-1

The table shows the times it took different animals to cover various distances. Use the table to answer the question that follows.

The speed limit for a road is 45 miles per hour, or about 72 kilometers per hour. Select ALL of the animals whose average speed is greater than 72 kilometers per hour.

• cheetah

• rabbit

• giraffe

• gray fox

Tags

NGSS.MS-PS3-1

The table shows the times it took different animals to cover various distances. Use the table to answer the question that follows.

The speed limit for a road is 45 miles per hour, or about 72 kilometers per hour. Select ALL of the animals whose average speed is greater than 72 kilometers per hour.

• cheetah

• rabbit

• giraffe

• gray fox

Tags

NGSS.MS-PS3-1

The table shows the times it took different animals to cover various distances. Use the table to answer the question that follows.

The speed limit for a road is 45 miles per hour, or about 72 kilometers per hour. Select ALL of the animals whose average speed is greater than 72 kilometers per hour.

• cheetah

• rabbit

• giraffe

• gray fox

Tags

NGSS.MS-PS3-1

A car travels northward on a straight stretch of highway. The graph below shows the velocity of the car during a 20-second time interval. Use the graph to answer the question that follows.

What is the acceleration of the car during interval AB?

• 0.40 m/s²

• 0.40 m/s² northward

• 2.5 m/s²

• 2.5 m/s² northward

Tags

NGSS.MS-PS2-2

The image shows two forces acting on a 5 kilogram (kg) box moving to the right at a constant speed.

What can be said about the motion of the box?

• The magnitude of F₁ is less than the magnitude of F₂, so the box will change speed and direction.

• The magnitude of F₁ is less than the magnitude of F₂, so the box will change direction but not speed.

• The magnitude of F₁ is greater than the magnitude of F₂, so the box will change speed but not direction.

• The magnitude of F₁ is greater than the magnitude of F₂, so the box will change speed and direction.

Tags

NGSS.MS-PS2-2

During an outing in the country, Saul gets a little too close to a newborn calf and her protective mother. He runs as fast as he can across the pasture toward the woods, with the angry animal in hot pursuit. The cow is very large, and Saul knows that he will have an advantage if he runs among the trees. Why?

• His momentum will increase based on Newton's law of action-reaction.

• The cow will have difficulty changing direction based on Newton's law of inertia.

• The trees will end the cow's forward movement based on Newton's law of inertia.

• Cows are naturally afraid of forests and the predators in them based on Newton's law of action-reaction.

What happens if the sum of all the forces acting on a moving object is zero?

• The object will accelerate uniformly.

• The object will slow down and stop.

• The object will change the direction of its motion.

• The object will continue moving with constant velocity.

Tags

NGSS.MS-PS2-2