Begin the lesson by introducing the concept of contact forces, focusing on applied force and friction. Use real-life examples such as ice hockey to illustrate these concepts.
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Contact Forces – Applied Force
Learning Objectives
- Understand the concept of contact forces and identify examples such as applied force and friction.
- Explain how applied forces involve the interaction of two objects in contact, resulting in changes in motion or direction.
- Describe how the direction and magnitude of an applied force affect the speed and direction of an object, using ice hockey as an example.
- Analyze the role of applied forces in controlling the movement of objects, such as a puck in ice hockey.
Introduction and Hook
Engage students with a brief discussion on how they use applied forces in everyday activities, such as pushing a door open or kicking a ball.
Direct Instruction
Explain the interaction of two objects in contact and how applied forces result in changes in motion or direction. Use diagrams and examples to clarify these concepts.
Introduce the video 'Forces and Motion – Magnitude and Direction' to help students understand how different forces affect the movement of objects. This video provides relatable examples and aids in visualizing the concepts.
Guided Exploration
Facilitate a group activity where students explore the effects of applied forces using objects like toy cars or balls. Encourage them to observe changes in speed and direction.
Watch the video 'Forces in Action on the Football Field – Quiz Edition' to see how forces affect the movement of a soccer ball. This video reinforces understanding through practical demonstrations.
Hands-On Activity
Conduct an experiment where students apply different forces to objects and measure the resulting motion. Use rulers and timers to quantify changes in speed and direction.
Use the 'Applied Force' assessment to have students describe the contact forces acting on objects in various scenarios. This helps them connect theoretical concepts with practical examples.
Independent Practice
Assign students to complete worksheets on applied forces, focusing on scenarios like ice hockey or soccer. Encourage them to analyze how force magnitude and direction influence motion.
Check for Understanding
Hold a class discussion to review key concepts. Ask students to explain how applied forces affect motion in their own words and provide examples.
Use the 'Forces and Motion' assessment to evaluate students' understanding of how force magnitude and direction affect motion. This assessment encourages critical thinking and application of concepts.
Review and Reflection
Encourage students to reflect on what they have learned about applied forces. Have them write a short paragraph on how they see these forces in action in their daily lives.
Assessment and Extension
Conduct a quiz to test students' comprehension of contact forces, focusing on applied force and friction. This helps consolidate their understanding of the topic.
Try the QuizFor further exploration, suggest students investigate how applied forces are used in different sports or activities, encouraging them to present their findings to the class.
