Unit 3 - TEKS 7.7A-D

Calculate the average speed of a car that travels 150 kilometers in 3 hours.

• 45 km/h

• 50 km/h

• 55 km/h

• 60 km/h

Tags

NGSS.MS-PS3-1

Which of the following statements correctly distinguishes between speed and velocity?

• Speed includes direction, while velocity does not.

• Velocity includes direction, while speed does not.

• Both speed and velocity include direction.

• Neither speed nor velocity includes direction.

A distance-time graph shows a straight line with a positive slope. What does this indicate about the object's motion?

• The object is at rest.

• The object is moving at a constant speed.

• The object is accelerating.

• The object is decelerating.

Tags

NGSS.MS-PS3-1

According to Newton's First Law of Motion, what will happen to an object at rest if no unbalanced force acts on it?

• It will start moving.

• It will remain at rest.

• It will accelerate.

• It will change direction.

If a cyclist travels 30 km in 2 hours, what is their average speed?

• 10 km/h

• 15 km/h

• 20 km/h

• 25 km/h

Which of the following best describes velocity?

• 60 km/h

• 60 km/h north

• 60 km

• 60 km north

What does a horizontal line on a distance-time graph indicate?

• The object is moving at a constant speed.

• The object is accelerating.

• The object is at rest.

• The object is decelerating.

What effect do balanced forces have on an object in motion according to Newton's First Law?

• The object will stop.

• The object will change direction.

• The object will continue moving at a constant speed.

• The object will accelerate.

A runner completes a 400-meter lap in 50 seconds. What is the runner's average speed?

• 6 m/s

• 7 m/s

• 8 m/s

• 9 m/s

Tags

NGSS.MS-PS3-1

How does velocity differ from speed in terms of motion?

• Velocity is a scalar quantity, while speed is a vector quantity.

• Speed is a scalar quantity, while velocity is a vector quantity.

• Both speed and velocity are scalar quantities.

• Both speed and velocity are vector quantities.