Kinetic Energy
What is the equation for kinetic energy?
What is KE=(1/2)(m)(v^2)?
What is the equation for gravitational potential energy?
What Ug=mgh?
What is the equation for elastic potential energy?
What is Us=(1/2)(k)(x^2)?
They are known for their discoveries in calculus and physics.
Who is Sir Isaac Newton?
What is the equation for work?
What is W=(F)(d)(cos(theta))?
How fast would an 80kg person need to run to have the same amount of KE as a 10g rifle bullet fired at 700m/s?
What is 7.82m/s?
Does a boy jumping down from a tree limb have decreasing gravitational potential energy?
What is yes?
Will the elastic potential energy be negative when the spring is compressed to the left of equilibrium?
What is no?
Who is the physicist who was wheelchair bound and was known to use an automated voice?
Who is stephen hawking?
Can work be done when the force doing the work and the displacement of the object are perpendicular?
What is no?
A 0.1 kg stone sits at rest on top of a compressed vertical spring. The potential energy stored in the spring-earth-stone system is 40J. The spring is released, throwing the stone straight up into the air.
How much kinetic energy will the stone have when it first leaves the spring?
What is 40 J?
A 0.1 kg stone sits at rest on top of a compressed vertical spring. The potential energy stored in the spring-earth-stone system is 40J. The spring is released, throwing the stone straight up into the air.
How much gravitational potential energy, relative to the spot where the stone was released, will the stone have when it reaches the peak of its flight? Justify your answer.
What is 40J?
What is when displacement is zero?
Who came up with the theories of of general and special relativity
Who is albert einstein?
What is the area of a force vs position graph?
Block A of mass M is released from rest at the top of a 60° incline and at the bottom of the incline the KE of the Block is calculated to be 8.5 Joules. Block B of mass 2M is released from rest at the top of a 30° incline (at the same vertical height as Block A was released). How will the KE of Block B compare to Block A? Both tracks are frictionless.
_______ Greater than 8.5 J _______ Less than 8.5 J _______ Equal to 8.5 J
What is the KE will be 4 times as great?
When would the gravitational potential energy of a pendulum be maximized?
When is at the top of the swing?
When is the velocity of a spring mass system zero?
When is at maximum displacement from equilibrium?
This physicist shoved a cat in a box and wondered if it was dead or alive, couldn't make a decision, so just said "yes".
Who is Erwin Schrodinger?
Students are using a spring powered launcher to launch a toy car on a horizontal track. When they compress the spring by a distance D the car moves with maximum velocity V. They want to launch the toy car as fast as possible. What will increase the maximum velocity of the toy more, doubling the spring constant by using a different spring or doubling the distance D they compressed the original spring and why?
What is doubling the distance would cause the kinetic energy to quadruple?
This physicist is known for their discovery in radioactivity which led to advancements in medicine.
Who is Marie Curie?