Am I correct?
Which statement explains why a bicycle is stable when a rider pedals quickly?
(Points : 1)
The angular momentum vector resists directional change. <-------
Applying a torque does not change the angular velocity of the wheel.
A rotating object acts like a magnet in seeking to point north.
When one object exerts a net torque on another, the second object exerts net torque on the first.
To have the maximum effect in increasing the angular momentum of a potter's wheel, where should you apply a force with your hand?
(Points : 1)
It makes no difference where the force is applied.
You should apply a force with your hand as close to the axis of rotation as possible.
You should apply a force with your hand near the middle of the wheel.
You should apply a force with your hand at the edge of the wheel.<------
I believe these are correct answers. So, i'll stick with them. :)
The angular momentum vector resists directional change. <-------
YES !!!!
You should apply a force with your hand at the edge of the wheel.<------
YES!
Ok :), thank you
You are welcome.
To check if your answers are correct, we need to analyze the statements and understand the concepts they refer to.
For the first question, the correct answer is "The angular momentum vector resists directional change." This statement explains why a bicycle is stable when a rider pedals quickly. When rotating objects have a large angular momentum, they tend to resist changes in their direction of rotation. This stability helps the rider maintain balance on the bike.
To determine if your answer is correct, you would need to understand the concept of angular momentum and its relation to stability in rotating objects. You can confirm your answer by checking if the explanation matches your understanding of the concept.
For the second question, the correct answer is "You should apply a force with your hand at the edge of the wheel." When applying a force to a rotating object, exerting the force at the edge or rim of the object increases its angular momentum the most. By applying force at the edge of the potter's wheel, you maximize its rotational motion.
To verify if your answer is correct, you need to understand the concept of torque and how it affects the angular momentum of a rotating object. Checking if your explanation aligns with this concept will help you determine if your answer is correct or not.