Lab: circular motion

In your lab, which object's mass was used to determine the centripetal force, F_c ?

• A

• B

• C

• D

• Centripetal force was not a part of this lab investigation.

Which part of the lab apparatus corresponds to the radius, r, in the equation for velocity?

• A

• B

• C

• D

• Radius is not part of this lab investigation.

Identify what is incorrect about this bar graph.

• The mass values are too large for this lab.

• The bars are shaded in.

• There is no label on the x axis.

• It is not a bar graph

Which graph is the only correct graph for the circular motion lab in our physics class?

• 
• 
• 
• 

Which statement is true about this data table from our circular motion lab?

• The velocity was calculated correctly, using the time of only 1 revolution in the equation.

• The velocity values are incorrect because they show the wrong units.

• The velocity values are too large because they did not use kg in the equation. They used grams.

Which variable in this data table is showing the wrong units?

• Hanging mass

• Force

• Time

• Velocity

Which statement is true about this graph from our circular motion lab investigation?

• The velocity is decreasing as the mass increases.

• This is not a bar graph.

• This is a fine example of a bar graph.

• There are no scales present on this graph.

(True/False) All units shown in this data table are correct for the corresponding variable.

• True

• False

Which statement would be a good conclusion for the data shown in this graph?

• The velocity cause the mass to increase in the investigation.

• The velocity of the rotating mass was not affected by the change in mass.

• As the mass increased, the velocity of the rotating mass remained constant.

• As the mass increased, the velocity of the rotating mass increased.

In which direction was the centripetal force causing the object to move in a circle?

• circular

• down

• in a straight line

• toward the center