Activity No. 12 - QUIZ

Which of the following is true about falling bodies?

• heavy objects fall faster than lighter ones

• objects fall with the same acceleration provided it is closer the ground

• the rate of fall vary depending on the size and shape of objects

• the only force acting is gravity

The curved path travelled by a projectile is

• parabola

• trajectory

• range

• height

What is the mass of a 92 N object?

• 9.39 kg

• 902 kg

• 92 kg

• cannot be determines

Upton Chuck is riding the Giant Drop at Great America. If Upton free falls for 2.60 seconds, what will be his final velocity and how far will he fall?

• 25.5 m/s

• 0

• 43.5 m/s

• 8.79 m/s

A stone is dropped into a deep well and is heard to hit the water 3.41 s after being dropped. Determine the depth of the well.

• 19.67 m

• 23.78 m

• 57.00 m

• 102.3 m

A baseball is popped straight up into the air and has a hang-time of 6.25 s. Determine the height to which the ball rises before it reaches its peak. (Hint: the time to rise to the peak is one-half the total hang-time.)

• 12 m

• 15 m

• 48 m

• 98 m

Which angle produces the greatest range?

• 30

• 60

• 45

• 75

Consider a plane moving with a constant speed at an elevated height above the Earth's surface. In the course of its flight, the plane drops a package from its luggage compartment. Where will it land with respect to the plane?

• behind the plane

• in front of the plane

• directly below the plane

• none of the above

What factor(s) affect how far a projectile will land?

• angle

• initial velocity

• both angle and initial velocity

• none of the above

A monkey throws a banana horizontally from the top of a tree. The banana hits the ground 4 seconds later and lands 80 meters from the base of the tree. How fast did the monkey throw the banana?

• 320 m/s

• 10.47 m/s

• 20 m/s

• 0.5 m/s