Questions:



Questions:

1. Define the word FORCE and state what the unit is used for force.

2. Define the word MOTION.

3. What is the name of the scientist that formulated the Three Laws of Motion?

4. What does Newton’s First Law of Motion State? Give an example of a way we see this law in our everyday lives.

5. What is another name for Newton’s First Law of Motion? What does the word INERTIA mean?

6. What does Newton’s Second Law of Motion State? Why might this law also be called “The Equation Law”?

7. What is the relationship between force, mass and acceleration implied by Newton’s Second Law of Motion? (State at least 2 relationships)

8. What does Newton’s Third Law of Motion State?

9. A group of students are playing kickball at the local elementary school. As they come out onto the playground, they find two soccer balls lying on the grass perfectly still. They notice during their game that if they kick the two balls with the same force, the lighter ball has a greater acceleration than the heavier ball. They also notice that as they kick the ball around, it causes their toes to burn. Explain all three of Newton’s Laws of Motion using this example. |  | |

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|Directions: Mark each of the following situations as an example of Newton’s First (1st ), Second (2nd ) or Third (3rd ) Law on the blank before |

|the number. Then explain in complete sentences how the situation is an example of that particular law. |

|A magician pulls a tablecloth out from under dishes and glasses on a table without disturbing them. |

|Explain Your Answer: |

|  |

|A person’s body is thrown outward as a car rounds a curve on a highway. |

|Explain Your Answer: |

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|Rockets are launched into space using jet propulsion where exhaust accelerates out from the rocket and the rocket accelerates in an opposite |

|direction. |

|Explain Your Answer: |

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|A picture is hanging on a wall and does not move. |

|Explain Your Answer: |

|  |

|A person not wearing a seatbelt flies through a car window when someone slams on the breaks because the person’s body wants to remain in |

|continuous motion even when the car stops. |

|Explain Your Answer: |

|  |

|Pushing a child on a swing is easier than pushing an adult on the same swing, because the adult has more inertia. |

|Explain Your Answer: |

|  |

|A soccer ball accelerates more than a bowling ball when thrown with the same force. |

|Explain Your Answer: |

|  |

|A soccer player kicks a ball with their foot and their toes are left stinging. |

|Explain Your Answer: |

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|A student leaves a pencil on a desk and the pencil stays in the same spot until another student picks it up. |

|Explain Your Answer: |

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|Two students are in a baseball game. The first student hits a ball very hard and it has a greater acceleration than the second student who bunts|

|the ball lightly. |

|Explain Your Answer: |

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|[pic] | |

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Newton's Laws – Vocabulary Review

Directions: Match the terms in column two to the hints in column one.

|1. |  Tendency for an object to resist changes in motion. |A. |  Sir Isaac Newton |

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|2. |  Also known as Law of Inertia |B. |  Inertia |

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|3. |  Push or Pull |C. |  Force |

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|4. |  Law based on the equation F = m x a |D. |  Newton’s 1st Law |

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|5. |  Unit of Force |E. |  Newton’s 2nd Law |

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|6. |  Object Changing Position |F. |  Newton’s 3rd Law |

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|7. |  The greater the force on an object, the greater the _____ of an object. |G. |  Newton's |

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|8. |  Scientist that formulated 3 Laws of Motion |H. |  F = m x a |

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|9. |  For every action there is an equal an opposite reaction. |I. |  Motion |

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|10. |  Equation showing relationship between force, mass and acceleration. |J. |  Acceleration |

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|11. |  The greater the ____ of an object, the smaller the acceleration if a similar |K. |  Mass |

| |  force is applied. | | |

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|Newton's Laws – Laboratory |

|Purpose: This laboratory will demonstrate Newton’s Laws of Motion. |

|Materials: |

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|Clay |

|Ruler |

|Baseball |

|Tennis Ball |

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|Pool Ball |

|Ping Pong Ball |

|Balance |

|Tape |

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|Procedure: |

|Go to a location in the room next to a wall. |

|Place a piece of tape 1 meter above the floor. (This will be the point you release the balls from during the laboratory). |

|Take the mass of each of the balls using a balance and place these masses in the observation table provided. |

|Roll up the clay into a ball and place the ball of clay on the floor under the piece of tape. Place a piece of tape to mark the top of the clay.|

|The set-up should be similar to the diagram below: |

|[pic] |

|Drop each of the balls from the 1–meter mark so that they land on the clay. Using the taped mark just above the clay, measure how much each ball|

|dents the clay. Place that amount in the observation table provided. |

|During this laboratory, think about how you are observing Newton’s Three Laws of Motion. |

|Observation Table: |

|  |

|Type of Ball |

|Mass of Ball (gm) |

|Depth of dent in clay due |

|to the force of the ball (cm) |

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|Ping Pong Ball |

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|Tennis Ball |

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|Baseball |

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|Pool Ball |

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|Conclusion Questions: |

|Describe one way you observed Newton’s First Law of Motion during this laboratory. |

|Newton’s Second Law of Motion explains the relationship between mass, force and acceleration. In this experiment acceleration due to gravity was|

|the same for each ball. What was the relationship between FORCE and MASS when acceleration was held constant? |

|Describe one way you observed Newton’s Third Law of Motion during this laboratory. |

|Thinking Ahead: |

|  Think about the amusement park ride that is often called “Bumper Cars”. How do you experience each of Newton’s Three Laws of Motion during |

|this ride? |

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|[pic] | |

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