IB Physics Topic A: Kinematics Test

Which graph represents zero acceleration (constant velocity)?

• A
• B
• C
• D

Tags

NGSS.HS-PS2-1

What is happening between 4 and 5 seconds?

• The object is slowing down in a negative direction.
• The object is slowing down in a positive direction.
• The object is slowing down in a negative direction.
• The object is speeding up in a negative direction.

Tags

NGSS.HS-PS2-1

Who had the greatest average speed after 100 seconds?

• Mike
• Katelyn
• Alex
• They had the same average speed

Tags

NGSS.MS-PS3-1

What is happening at D?

• Stationary
• Accelerating
• Fast steady speed; moving away from the starting position
• Slower steady speed; moving away from the starting position

An object is moving in a circle with constant speed. Which of the following is/are true?

I. The object has constant velocity

II. The object has nonzero acceleration

III. After one revolution, the magnitude of the displacement is a positive value.

• I only

• II only

• III only

• I and II only

• II and III only

An ideal elastic rubber ball is dropped from a height of about 2 meters, hits the floor and rebounds to its original height.Which of the following graphs would best represent acceleration versus time for the bouncing ball?

• 
• 
• 
• 

The graph above shows the velocity versus time for an object moving in a straight line. At what time after t = 0 does the object again pass through its initial position?

• Between 0 and 1

• 1 s

• Between 1 and 2 s

• 2s

• Between 2 and 3 s

Consider a ball thrown up from the surface of the earth into the air at an angle of 30° above the horizontal. Air friction is negligible. Just after the ball is released, its acceleration is:

• 0 m/s²

• Upwards at 9.8 m/s²

• Downwards at 9.8 m/s²

• Upwards at 4.9 m/s²

• None of these

At time t = 0, car X traveling with speed v₀ passes car Y which is just starting to move. Both cars then travel on two parallel lanes of the same straight road. The graphs of speed v versus time t for both cars are shown above. Which of the following is true at time t = 20 seconds?

• Car X is accelerating faster than car Y.

• Car Y is passing car X.

• Car Y is in front of car X.

• Car Y is behind car X

Tags

NGSS.HS-PS2-1

Above is a graph of the distance vs. time for car moving along a road. According the graph, at which of the following times would the automobile have been accelerating positively?

• 5, 29, & 57 min.

• 5, 12, 29, & 35 min.

• 12, 35, & 41 min.

• 0, 20, 38, & 60 min