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Impulse is equal to the change in an object’s:

If the distance between two gravitating objects is tripled, the gravitational force becomes:

For a simple pendulum in simple harmonic motion, at maximum displacement:

Can a person do mechanical work on an object if the object does not move at all?

A ball is thrown at 18 m/s at an angle of 30 degrees above the horizontal. Neglecting air resistance, what is the horizontal component of velocity at the top of the path?

A rubber ball and a lump of clay have the same mass and speed when they hit a wall. The ball bounces back, while the clay sticks. Which undergoes the larger magnitude of momentum change?

The horizontal and vertical components of a ball’s initial velocity are 12 m/s and 16 m/s. What is its initial speed?

Which statement about distance traveled and displacement is always correct?

TRUE or FALSE: Vertebrates exhibit a high degree of cephalization and have highly-developed nervous systems. 

Describe one characteristic that makes Clade Echinodermata so unique from other clades we’ve discussed in class.