October 30, 2024- Newton's Law (Science)

Science: Students will be able to identify Newtons 3 laws of motion. 

Newton's 1st law tells us that an object won't change its motion unless acted upon by a force. Newton's 2nd law tells us that heavier objects need a larger force to move them. Newton's 3rd law tells us that for every action there is an equal and opposite reaction.

Essential Question: What are Newtons 3 Laws of Motion? 

At home assignments: 

Science Check for understanding:

1. Newton's Law's Worksheet 

2. Newton's Law  Quiz 

Readworks Assignments: 

1. Sir Issac Newton and Lebron James 

2. Energy and Physics

Try it at home:

Below are some experiments that can be done at home for each law. 

Materials

• Marble or other small sphere
• Two meter sticks taped together in a “v” shape
• Three spring scales
• Plastic cup
• Index card
•  Coin
•  Stop watch

Newton’s First Law is generally stated as, “Things in motion tend to remain in motion, things at rest tend to remain at rest.” The tendency to stay at rest or, once moving, in motion, is called INERTIA. Things move or stop only if acted upon by another force.

1. Set a container on a table.

2. Place a card on top of the container and place a quarter on top of the card.

3. Flick the card away with your finger.

4. Did the coin have inertia?

5. What force acted on the card to set it in motion?

     6. What force acted on the coin after step 3? (If the card is flipped out of the way fast enough, the coin will remain over the container and fall into it.)

Newton’s Second Law is “Acceleration of an object increases as the force causing acceleration increases.”

1. Prepare a ramp about 1 meter long.

2. Lift one end of the ramp and place a pencil under it.

3. Roll a marble down the ramp and time the roll from one end to the other.

4. Lift the ramp higher.

5. Place a book under the lifted end and start the marble on a ramp with one end pencil high. As the marble starts out, lift the end of the ramp higher.

6. What was the effect on the speed of the marble?

7. Compare the results of the first two experiments.

8. What was the result?

9. What was the force that was acting on the marble?

10. How was it increased?

11. What was the effect of this Increase?

Newton’s Third law is, “For every action there is an opposite and equal reaction.”

1. Take two spring scales and hook them together.

2. Have two students pull on the scales in opposite directions. Record the readings from both scales.

3. Place a third scale between the other two. Record the readings from all three.

4. What were the differences in the readings for the two scales? 2

     5. What were the differences when three scales were used? (The readings should all be the same in each experiment.)

Extension: 

•  A three-stage rocket launched into orbit around the Earth then sent on to the moon. Which of Newton’s laws are being applied in each case and at what point are they being applied?

If you have any questions or concern, please reach out via remind or email kashanna.walc@gmail.com

As a reminder, please complete a minimum of 3 or more hours a week of Essential Ed. 

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