1-D Kinematics Review

If a bowling ball and a Tennis ball are dropped from the same height, which will hit the ground first?

• They will hit at the same time

• Tennis Ball

• Bowling Ball

An airplane slows down and then comes to a stop on a runway: identify the correct V-T Graph for the situation.

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An airplane accelerates on a runway to take off: identify the correct X-T Graph for the situation.

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An airplane maintains a constant speed as it taxis to a runway: identify the correct V-T Graph for the situation.

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The slope of a X-T graph tells us an object's...

• Position

• Acceleration

• Displacement

• Velocity

If an object is thrown in the air, its velocity at the highest point in its motion will be...

• 0 m/s

• Its greatest velocity

• Its lowest velocity

• Half of its initial velocity

The steeper the slope of a Velocity-Time graph, the lower the acceleration

• True

• False

If a ball is thrown in the air and it takes time "t" to go up and come back down, the amount of time for it to come down only would be

• 2t

• t²

• .5t

• .25t

A ball falls off of a cliff. It's acceleration

• Depends on the initial velocity of the ball

• Depends on the height of the cliff

• Depends on the mass of the object

• Is equal to -9.8 m/s²

Why is a ball's acceleration negative when it is thrown upwards?

• It slows down in a positive direction

• It slows down in a negative direction

• It speeds up in a negative direction

• It is not negative, it is positive