Review Game E1-E2

Observations are evidence collected using our senses.

• True

• False

Observations are claims that are derived from inferences.

• True

• False

What can you conclude about the line on a velocity-time graph as a person walks away from a motion sensor

• The line would be below the x-axis

• The line would be right alone the x-axis

• The line would be above the x-axis

• Depends on the speed of the cart

Choose the correct observation and inference using section 2 of the graph below

• Observation: The object is speeding up

  Inference: The kinetic energy is decreasing

• Observation: The object is speeding up

  Inference: The kinetic energy is increasing

• Observation: The object is slowing down

  Inference: The kinetic energy is increasing

• Observation: The object is slowing down.

  Inference: The kinetic energy is decreasing.

Which vector has a larger magnitude?

• A

• B

• They have the same magnitude.

• There is not enough information to tell.

Which statement is NOT correct?

• Graphs can tell a story about the motion of an object.

• Graphs must always be used when displaying data.

• Graphs are a visual representation of data.

• None of the above.

Titan is running to the left at 20 m/s. Milo is running to the right at 20 m/s. Compare the speed and velocity of Titan and Milo

• Titan and Milo have the same velocity and speed

• Nothing can be said about the velocities of Titan and Milo

• Titan and Milo have the same speed, but different velocities

• There is not enough informaiton to make a comparison

How many times does the object change direction (left to right or right to left)?

• 2

• 3

• 7

• 3

On the left there is a velocity-time graph of a man running.

Which relationship below correctly compares the speed of the runner at two different times?

• The speed at 2s is less than the speed at 6s

• The speed at 4s is the same as the speed at 8s

• The speed at 3s is greater than the speed at 7s

• The speed at 9s is greater than the speed at 5s

Which section shows the fastest constant speed?

• A

• D

• G

• C