{
// console.log(voice.name, voice.lang)
//})
//debug
// Queue this utterance.
window.speechSynthesis.speak(msg);
}
]]>
lengthHorizontalTrack-zeroPositive) {
ax2 = factorOfSphere*Math.cos(acuteAngle2) * (-g * Math.cos(angle2));
} else {
ax2 = 0;
// alert("a")
}
if (x2 > lengthHorizontalTrack-zeroPositive) {
vy2 = vy2;
} else {
vy2 = 0;
// alert("b")
}
if (x2 > lengthHorizontalTrack-zeroPositive) {
ay2 = factorOfSphere*Math.sin(acuteAngle2) * (-g * Math.cos(angle2));
} else {
ay2 = 0;
// alert("c")
}
}
]]>
Question: Observe the Gravitational Potential Energy Store (G) of both spheres before they start moving down the slopes. How is the Gravitational Potential Energy Store related to the height of each sphere on the slope?
Follow-up: Predict how the Gravitational Potential Energy Store will change as each sphere rolls down the slope and explain your reasoning.
Question: As the spheres roll down their respective slopes, how does their Kinetic Energy Store (K) change? Compare the Kinetic Energy Stores of the two spheres when they reach the horizontal track.
Follow-up: Based on your observations, what factors influence the amount of Kinetic Energy Store each sphere has at the bottom of the slope?
Question: Adjust the inclined angle of one slope to be steeper than the other. How does changing the slope angle affect the speed of the sphere at the bottom of the slope? Explain your observations using the concepts of Gravitational Potential Energy Store and Kinetic Energy Store.
Follow-up: What do you predict will happen to the position of collision if one slope is steeper than the other? Justify your answer.
Question: Set both slopes to the same angle, but give the two spheres different masses. How does the mass of each sphere affect the speed and Kinetic Energy Store at the bottom of the slope? Does mass influence the position of the collision?
Follow-up: Why does the mass of the spheres not affect their acceleration down the slope, even though it does influence their Kinetic Energy Store?
Question: Adjust the radius of each sphere. How does changing the radius affect the speed and Kinetic Energy Store of the spheres as they reach the bottom of the slope?
Follow-up: How does the radius of the spheres influence the collision position? Consider the moment of inertia in your explanation.
Question: Using the physics equations of motion and the energy principles, predict the position where the two spheres will collide. How accurate is your prediction compared to the simulation result?
Follow-up: What adjustments would you make to your calculations or the simulation parameters to improve the accuracy of your prediction?
]]>