Week 20 homework PS

According to the graph, what was the Speed for the first 5 seconds?

• 1 m/s

• 0.5 m/s

• 5 m/s

• 2 m/s

Tags

NGSS.MS-PS3-1

What is this object doing?

• moving at a constant speed away from start and then stops

• increasing speed and then stops

• decreasing speed and then constant speed

• moving at a constant speed away from start and then constant speed

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

What could account for Marie’s motion at 27 minutes?

• She was late so she broke the speed limit

• She forgot something at home and ran back to get it

• She was stopped at a red light

• She was driving across the top of a hill

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-1

NGSS.MS-PS3-5

What does a horizontal line on a position-time graph indicate about the motion of an object?

• The object is moving at a constant speed.

• The object is accelerating.

• The object is not moving.

• The object is moving backward.

If a position-time graph shows a straight line with a positive slope, what type of motion does it represent?

• Constant speed

• Acceleration

• Deceleration

• No motion

How can you calculate the speed of an object from a position-time graph?

• By finding the area under the graph

• By calculating the slope of the graph

• By counting the number of peaks

• By measuring the height of the graph

Tags

NGSS.MS-PS3-1

What does a steeper slope on a position-time graph indicate?

• Slower speed

• Faster speed

• No motion

• Constant speed

If the position-time graph of an object is a straight line with a negative slope, what does it indicate?

• The object is moving to the right at a constant speed.

• The object is moving to the left at a constant speed.

• The object is accelerating.

• The object is not moving.

What does the slope of a position-time graph represent?

• Distance

• Time

• Speed

• Acceleration

If a position-time graph shows a curve that is getting steeper, what does it indicate about the object's motion?

• The object is moving at a constant speed.

• The object is accelerating.

• The object is decelerating.

• The object is not moving.