LOLmaster V 18
Run LOLmaster V 18 as a browser-based WebEJS model for mechanics.
1. Watch or Launch
Launch the Interactive
Open the simulation, adjust the controls, and compare what changes on screen before answering the concept-check questions.
2. Big Ideas
What Students Can Learn
- Distinguish speed from acceleration.
- Use velocity-time slope to infer acceleration.
- Compare motion on different slopes or with different initial conditions.
- Recognise negative acceleration as change opposite to the chosen positive direction.
Guiding Question
How is velocity changing, and what evidence shows the acceleration?
3. Try the Investigation
Choose the Positive Direction
Define the direction used for positive velocity and acceleration.
Compare Velocity Changes
Observe how velocity changes over equal time intervals.
Read Slope or Data
Use a velocity-time graph or numerical display to infer acceleration.
Explain Direction
Decide whether acceleration is in the same or opposite direction as velocity.
4. Teacher Notes
Lesson Use
Use this to separate the everyday word acceleration from the physics idea of velocity change. Students should look for change in velocity, not simply high speed.
Discussion Prompts
Ask: Can an object be moving fast with zero acceleration? Can acceleration be negative while the object still moves forward? What does a steeper velocity-time slope mean?
Teaching Moves
Use paired cases: constant velocity versus increasing velocity, then increasing velocity versus decreasing velocity.
5. Concept Check
These questions are generated from the topic and the concept illustrated by the simulation. Use them after students have explored the model.
Concept Score
Correct first attempts build a streak and unlock higher point multipliers on this device.
1. What is acceleration?
2. What does a steeper velocity-time slope mean?
3. Can an object move with constant speed and zero acceleration?
4. What can negative acceleration mean?
5. What evidence identifies acceleration?
Expert Challenge
Unlocks after 3 correct concept-check answers on this page.
1. In a LOL energy diagram interactive, what is the best expert check before accepting the final bars?
2. A student makes thermal energy disappear in the final LOL diagram. What feedback fits the interactive?
3. What makes a LOL answer stronger than a generic energy statement?
4. If the model shows less kinetic energy at the end, what should students inspect?
5. Why is the system boundary important in a LOL diagram?
7. Learning Pulse
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Where Recent Learners Are From
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