19 Questions
What is the relationship between angular velocity and tangential velocity?
They are directly proportional.
Which vector points towards the center in circular motion?
Centripetal acceleration vector
In circular motion, what must be true for an object to stay in its curved trajectory?
The centripetal force must be balanced by the tangential force.
What is the relationship between angular acceleration and tangential acceleration?
There is a direct relationship between them.
If two objects are spun in a circle at the same radius and angular velocity, which has a greater linear velocity upon release?
Both objects have the same linear velocity
What happens to tangential acceleration when an object is constantly changing direction?
Tangential acceleration must not be zero.
In a flat turn at high speed, what type of force balances the tangential force?
Frictional force
What is the unit of tangential acceleration?
$ms^{-2}$
If an object experiences a net force of zero in a curve, what can be said about its trajectory?
The object will maintain its curved trajectory.
What is the relationship between tangential velocity and angular velocity?
They are directly proportional
In circular motion, what is the direction of the tangential acceleration vector?
Along the tangent line
When considering forces in a curve, what is needed for an object to maintain its curved trajectory?
Balanced tangential and centripetal forces
If a satellite orbits a planet once every 30 days, what can be inferred about its speed?
It is constant
What does a tangential acceleration of zero indicate in circular motion?
The object is moving at a constant speed
When a car enters a freeway ramp at 45 mph and accelerates to 65 mph, what can be said about its centripetal force?
It balances the tangential force
What is the effect of a tangential acceleration pointing opposite to the object's motion?
Causing the object to leave its circular path
In circular motion, what balances the gravitational pull on an object to keep it in orbit?
'Sideways' centripetal force
When an object has a net force of zero in a curve, what does this imply about its velocity?
'Terminal velocity' is reached
What happens when a snowboarder slows down during a turn?
Negative acceleration occurs to slow down
Learn how to calculate average acceleration with a time interval of length zero, where velocity increases the same amount over the same distance each time. Explore the concept of constant acceleration and how it relates to velocity with a constant slope.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
