What is the formula to calculate velocity if you know the displacement and the time taken?

Tags

HS-PS2

If a car accelerates from rest to 60 m/s in 3 seconds, what is its acceleration?

• 20 m/s

• 60 m/s

Tags

NGSS.MS-PS2-2

What is the key difference between distance and displacement?

• Distance is a scalar quantity, while displacement is a vector quantity.

• Distance is a vector quantity, while displacement is a scalar quantity.

• There is no difference; they are the same.

• Distance can only be measured in meters, while displacement can be measured in meters and kilometers.

On a speed-time graph, what does a horizontal line represent?

• Constant acceleration

• Increasing speed

• Decreasing speed

• Constant speed

Tags

NGSS.MS-PS3-1

What does a steeply sloping line on a speed-time graph indicate?

• Constant speed

• High acceleration

• Low acceleration

• Deceleration

Tags

NGSS.MS-PS3-1

Which of the following is a vector quantity?

• Speed

• Distance

• Displacement

• Time

If a runner completes a lap around a 400m track, starting and finishing at the same point, what is their displacement?

• 0 m

• 400 m

• 800 m

• It cannot be determined with the given information.

What is the acceleration of an object that maintains a constant velocity?

• It is constantly increasing.

• It is equal to the velocity.

• It cannot be determined with the given information.

If an object moves in a straight line and doubles its speed in the last second of its motion, what can be said about its acceleration?

• The acceleration is constant throughout the motion.

• The acceleration increases in the last second.

• The acceleration is zero.

• The acceleration decreases in the last second.

Tags

NGSS.HS-PS2-1

Which of the following scenarios represents a case where displacement is equal to distance traveled?

• A car moving around a circular track and stopping at its starting point.

• A ball thrown straight up into the air and caught at the same height.

• A person walking in a straight line from point A to point B.

• A bee flying in a zigzag pattern before returning to its hive.