Grade 11 · Science · Physics

11th grade Free fall worksheet

6 printable versionsBuilding Confidence10 questions · answer keyFree · no account

Level: Building Confidence · On Level · Challenge Me

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Free fall

Grade 11 Science Worksheet - Building Confidence

NameDate

Circle the best answer, or write your answer on the line.

A ball is dropped from rest from a hovering drone. With g = 9.8 m/s² and no air, how fast is it falling after 0.5 s, Esme?
2.
In the velocity-time graph, what is the slope, Jun?
- 4.9 m/s²
- 9.8 m/s²
- 29.4 m/s²
3.
In the velocity-time graph, how fast is the ball falling at 2 s, Kira?
Use the picture in question 2.
- 9.8 m/s
- 39.2 m/s
- 19.6 m/s
4.
In the velocity-time graph, how far does the ball fall in the first 2 s, Luz?
Use the picture in question 2.
- 9.8 m
- 19.6 m
- 39.2 m
5.
About what is g, the free-fall acceleration near Earth's surface, Milo?
- About 9.8 m/s²
- About 9.8 m/s
- About 98 m/s²
6.
On the Moon, where there is no air, an astronaut dropped a hammer and a feather together. What happened, Noah?
- The feather landed first
- The hammer landed first, since it is heavier
- They landed together
7.
On Earth, a feather drifts down slowly while a ball drops fast. Why, Pia?
- Feathers have no mass
- Lighter things have a smaller g
- Air slows the feather much more
8.
A spring toy launches a ball straight up. What is its acceleration at the very top, Ren?
- 0 m/s², since it has stopped
- 9.8 m/s² upward
- 9.8 m/s² downward
9.
While the launched ball is still rising, what is it doing, Tala?
- Slowing down
- Moving at a steady speed
- Speeding up
10.
After the top, while the ball falls back down, what is it doing, Zee?
- Falling at a steady speed
- Slowing down
- Speeding up

Free fall. Every version has 10 questions, and the answer key prints on the second page.

I can use g = 9.8 m/s² for a dropped ball with no air: v = gt, d = ½gt², t = √(2h ÷ g) and v² = 2gd.
I can read a drop's velocity-time graph (slope g, area = distance) and its curving position-time graph (tangent slope = speed).
I can describe a launched ball: it slows going up, has a = 9.8 m/s² down at the top, and returns at its launch speed.
I can explain air resistance against mass. A feather and a hammer fell together on the airless Moon (Apollo 15), and a flat sheet floats only because of air.

Standard: supports HS-PS2-1

free fall: Moving under gravity alone, with no air resistance

g: Free-fall acceleration near Earth: about 9.8 m/s², downward

air resistance: The push of air against a moving object

vacuum: A space with the air pumped out

tangent: A line touching a curve at one point; its slope is the speed

Your child used 4.9 instead of 9.8. The speed grows by the full 9.8 m/s each second; the ½ belongs only in the distance formula.

Your child forgot to square the time. Distance fallen is ½gt²: double the time gives four times the distance.

Your child used gt² instead of ½gt². The ½ comes from the triangle under the velocity-time line.

What is the most common mistake with free fall?

Your child used 4.9 instead of 9.8. The speed grows by the full 9.8 m/s each second; the ½ belongs only in the distance formula.

Are these 11th grade science worksheets free to print?

Yes. All 6 printable versions at each level are free to print, with the answer key, and no account is needed.

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