| Full lesson | Create for a teacher a set of content for giving a lesson, beginning with the lesson plan. Each new block of materials must begin with an H1 heading (other subheaders must be H2, H3, etc). When you describe required pictures, write those descriptions in curly brackets, for example: {A picture of a triangle} |
| Which subject | Science |
| What topic | Forces Affect the Motion of Objects |
| What length (min) | 60 |
| What age group | Year or Grade 8 |
| Class size | 21 |
| What curriculum | NGSS MS-PS2-2 |
| Include full script | |
| Check previous homework | |
| Ask some students to presents their homework | |
| Add a physical break | |
| Add group activities | |
| Include homework | |
| Show correct answers | |
| Prepare slide templates | |
| Number of slides | 5 |
| Create fill-in cards for students | |
| Create creative backup tasks for unexpected moments |
Forces Affect the Motion of Objects
Year/Grade 8
Science
21 students
NGSS MS-PS2-2
| Step Number | Step Title | Length | Details |
|---|---|---|---|
| 1 | Introduction to Forces | 10 mins | Briefly introduce the topic of forces and motion; discuss Newton's laws. Use examples to demonstrate concepts. |
| 2 | Group Discussion | 10 mins | Divide students into groups of 3-4. Each group discusses examples of forces they encounter in daily life. |
| 3 | Hands-on Experiment | 20 mins | Groups perform an experiment using dynamics carts and weights to observe motion and forces (acceleration, gravity). |
| 4 | Break - Physical Activity | 5 mins | Lead students in a short physical activity or stretching to recharge and prepare for the next part of the lesson. |
| 5 | Data Analysis and Conclusions | 10 mins | Groups analyze their experiment results and prepare their findings on a worksheet, focusing on how forces affected motion. |
| 6 | Review and Wrap-up | 5 mins | Discuss findings as a class, summarizing key points. No presentations; collect worksheets for assessment. |
Assign students to write a short reflection (1-2 paragraphs) on how forces affect the motion of an object they encounter in their daily life and submit it for grading.
“Good morning, class! Today, we are going to dive into an exciting topic: forces and how they affect the motion of objects. Forces are all around us, influencing everything we do. For example, when you push a door, when you sit down on a chair, or even when you ride a bike—those actions involve forces.
Now, let’s briefly discuss Newton’s laws of motion. These laws tell us how objects behave when forces act on them. The first law states that an object at rest stays at rest, and an object in motion stays in motion unless acted on by an unbalanced force. The second law explains that the acceleration of an object depends on the mass of the object and the amount of force applied. Finally, the third law states that for every action, there is an equal and opposite reaction.
Are there any quick examples of Newton’s laws that you’ve seen in the real world?”
“Great examples, everyone! Now, I want you to turn to your neighbors. I’m going to divide you into groups of 3-4. In your groups, discuss examples of forces you encounter in your daily lives. Think about things like friction, gravity, and even tension. You’ll have 10 minutes for this discussion, so make sure everyone gets a chance to share.
Let’s get into our groups now!”
“Okay, everyone, let’s bring our discussion to life with an experiment! Each group will use dynamics carts, springs, and weights to observe how different forces affect motion.
Start by setting up your dynamics cart on a flat surface. First, we need to measure out a specific distance to see how far the cart travels when we apply a force. You’ll use weights to apply different forces.
Once you’ve set everything up, record how far the cart moves based on the weight you use. Pay close attention to how the acceleration changes with each force you apply. You’ll have 20 minutes to conduct this experiment, so work together and make sure everyone is involved!”
“Now that we’ve put a lot of thought into forces and motion, it’s important to take a quick break! Stand up, stretch your legs, and shake out any stiffness.
Let’s do a quick five-minute physical activity. How about a short game of Simon Says? It will get us moving and recharged for the next part of the lesson. Ready? Let’s begin!”
“Great job, everyone! I hope you’re feeling re-energized. Now, let’s focus on analyzing the data you collected during your experiment.
I want each group to look at your findings and fill out the worksheet provided. Summarize how different forces impacted the motion of the cart. Think about the patterns you noticed and what your results mean.
You’ll have 10 minutes for this activity. Don’t forget to make sure everyone in the group contributes to the worksheet!”
“Let’s come back together as a class to discuss your findings. Who would like to share what they observed about the effects of forces on the motion of your carts?
(Encourage several students to share.)
Thank you for sharing, everyone! We’ve learned how various forces play a crucial role in motion. Remember, forces are everywhere, and understanding them helps us make sense of the world around us.
Before we finish, I’d like everyone to hand in your worksheets to me for assessment. For homework, please write a short reflection—one to two paragraphs—on how forces affect the motion of an object you encounter in your daily life.
Thank you for your hard work today, class! I look forward to reading your reflections!”
| Slide Number | Image | Slide Content |
|---|---|---|
| 1 | {Image: A graphical illustration of forces acting on various objects} | - Introduction to Forces - Forces influence motion - Examples: pushing a door, sitting on a chair, riding a bike |
| 2 | {Image: A diagram representing Newton’s three laws of motion} | - Newton’s Laws of Motion - 1st Law: Object at rest stays at rest - 2nd Law: Acceleration depends on mass and force - 3rd Law: For every action, there is an equal and opposite reaction |
| 3 | {Image: Students engaging in group discussions} | - Group Discussion - Share examples of forces in daily life - Focus on friction, gravity, tension |
| 4 | {Image: Students conducting an experiment with dynamics carts and weights} | - Hands-on Experiment - Use dynamics carts, springs, weights - Observe how forces affect motion - Record distances and acceleration for various weights |
| 5 | {Image: Students analyzing data on a worksheet} | - Data Analysis and Conclusions - Summarize findings - Discuss patterns and results - Reflection homework assignment |
Can you describe a situation from your daily life where you experience friction, and how it affects the motion of objects around you?
If you could create your own experiment to explore one of Newton’s laws of motion further, what would you do, and what do you think you would discover?
Think of a sport or activity you enjoy. How do you see the concepts of forces at play in that scenario?
What is an example of a scenario where the third law of motion applies (for every action, there is an equal and opposite reaction)? Can you explain it?
Imagine you have two carts: one with a heavy weight and one with a light weight. If you apply the same force to both, what do you expect to happen regarding their acceleration and why?
Stand up tall, give it a try,
Let’s get moving, reach for the sky.
Stretch your arms, bend to the side,
A little activity, let’s take it in stride.
Jump in place, one, two, three,
March like soldiers, as fun as can be!
Twist your body, left and right,
Let’s give our minds a little light.
Raise your knees, high and proud,
Let’s get our hearts beating loud.
Run in place, fast and slow,
Move your bodies, feel the flow.
Clap your hands, stomp your feet,
Our quick session can’t be beat.
Take a deep breath, fill with cheer,
Now back to learning, let’s shift gears here!