1-D Kinematics

Which graph best represents how s, the displacement of a body, varies with time?

• A

• B

• C

• D

A sphere is released and falls. Its initial acceleration reduces until it eventually begins to travel at constant terminal velocity. Which displacement-time graph best represents the motion of sphere?

• A

• B

• C

• D

What can be deduced from the graph about the motion of the body?

• It accelerates continuously.

• It starts from rest.

• The distance is proportional to time.

• The speed changes.

What is the acceleration of the object during this time?

• 4 m/s²

• 20 m/s²

• 50 m/s²

• 100 m/s²

What are the units for acceleration?

• m/s
• m/s²
• m
• s/m

Tags

NGSS.HS-PS2-1

What are the units for velocity?

• m/s
• m/s²
• m
• s/m

a car moves at a constant velocity of 5 meters/second south for 2 seconds. what is the magnitude of the acceleration during the 2 seconds?

• 5 m/s²

• 0 m/s²

• 2.5 m/s²

• 10 m/s²

which statement is true for the first two hours of the green and red objects. 

• green and red have equal speeds
• green has higher speed
• red has higher speed
• green and red speeds are zero

Tags

NGSS.MS-PS3-1

what is the speed of the green object for the first 2 hours

• 10 km/hr
• 40 km/hr
• 20 km/hr
• 30 km/hr

Tags

NGSS.MS-PS3-1

the graph shows an object

• moving at a constant speed
• stationary
• with + accelerating
• with - accelerating

Tags

NGSS.MS-PS3-1