Name _________________________________________
Newton's second law states that force equals mass times acceleration.
Using that equation, solve the following problems.
1. A 20,000 kg jet plane is accelerating at 2 m/s2. How much force
does it put forth?
2. A boy on his skateboard is accelerating at a rate of 5 m/s 2 and has
a mass of 40kg. How much force does the boy on his skateboard
have?
3. How much force does a 35 kg child have that is running through
the house at an acceleration of 20 m/s2?
4. How much mass is required to exert a force of 25 Newtons,
accelerating at 5 m/s2?
5. A helicopter is exerting a force of 100,000 newtons. What is its
mass if it is accelerating at a rate of 100 m/s2?
6. An elephant is putting 25,000 newtons of force on Leah. The
elephant is accelerating at a rate of 10 m/s2, what is its mass?
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7. How fast is Michael accelerating if his mass is 10 kg and he is
exerting 1,500 Newtons of force?
8. Julia and Susie have a combined mass of 16kg. They have a force
of 20,000 newtons. How fast are they accelerating?
9. Christian has a mass of 5 kg. He is running across the room
accelerating at a rate of 10 m/s2. What is his force?
10. Josh kicks a soccer ball with a force of 200 newtons. The ball
accelerates at a rate of 100 m/s2. What is the mass of the ball?
11. Angela is accelerating at a rate of 5 m/s2 on her scooter. Her net
force is 100 newtons, what is her mass?
12. With a total force of 20,000N, an air plane has a mass of 1,200kg.
What is its acceleration?
13. What is the net force of a soccer ball with a mass of 5kg that is
accelerating at 2 m/s2?
14. What is the net force of 1kg accelerating at 1 m/s2?
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Answer Key
1. 40,000 newtons
2. 200 newtons
3. 700 newtons
4. 5kg
5. 1,000kg
6. 2,500kg
7. 150 m/s2
8. 1,250 m/s2
9. 50 newtons
10. 2kg
11. 20kg
12. 16.67 m/s2
13. 10 newtons
14. 1 newton
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Name ____________________________
Air Resistance Lab
Problem: How can I create the smoothest landing for my egg?
Research: If I maximize air resistance, the egg will float to the earth more
slowly.
Materials: 2 Styrofoam cups, 2 plastic grocery bags, 10 straws, yarn, tape
Hypothesis: Draw your design here before you build it:
What I actually built:
Data: This is how long it took for my egg to fall to the ground:
Test 1: _________
Test 2: __________
How could I make my design better? WHY would this make it better?
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Copyright©2013CrazyScienceLady
Copyright©2013CrazyScienceLady