UCM Quiz 2

Which direction would the pink object go if the disc suddenly stopped turning?

• vector D

• vector C

• vector B

• vector A

Centripetal acceleration acts in which direction?

• in a line tangent to the circle

• towards the center of the circle

• on the circumference

• outside the circle

What is the equation for velocity?

• v = 2πrf

• a = v²/r

• F = mv²/r

• F = ma

What type of acceleration does an object moving with constant speed in a circular path experience? 

• free fall 

• constant acceleration 

• linear acceleration 

• centripetal acceleration 

Which of the following depict the tangential velocity of the bowling ball?

• A
• B
• C
• D

What is the direction of the acceleration at point B, if the ball is revolving clockwise?

• up
• right
• down
• left

What is the tangential velocity of an object traveling in a circle?

• The distance around the circumference divided by the time it takes to travel around the circle

• The acceleration of the object divided by the radius of the circle

• The speed of the object divided by the radius of the circle

• The mass of the object divided by the centripetal force

Which number is the EXPONENT?
4² = 16

• 4

• 2

• 16

The rule of scientific notation is to write all exponents with a base of ____.

• 50
• 5
• 100
• 10