Kinetic Energy
What is the unit of measure for Kinetic Energy?
What is Joules?
What is the unit for Momentum?
What is Newtons times second?
What is N(s)?
Ignoring air resistance, how many forces are acting on a bullet fired horizontally after it leaves the rifle?
What is one (from the pull of gravity)?
What is the term for the point around which the rotation occurs, often referred to as the pivot point?
What is the Axis of Rotation?
What is the equation for force?
What is F=ma?
What is the formula for Kinetic Energy?
What is KE=1/2mv^2 ?
What is the formula for momentum?
What is p = mv ?
With all other factors equal, what happens to the acceleration if the unbalanced force on an object of a given mass is doubled?
What is Doubled?
What is the name of this symbol, and what does it symbolize, ω?
What is Omega, and Angular Velocity?
A 27 kg object is accelerated at a rate of 1.7m/s^2. How much force does the object experience?
What is 45.9N ?
What is the kinetic energy of an object with a mass of 2kg moving at a velocity of 10 m/s in a vacuum?
What is 100 Joules?
What is the change in momentum of an object called?
What is impulse?
Which statement concerning a car's acceleration must be correct if a car traveling to the North (+y direction) begins to slow down as it approaches a stop sign?
What is Acceleration is negative?
A wheel has a radius of 0.5 meters and is rotating at an angular velocity of 4 radians per second. What is its linear velocity at the edge of the wheel?
What is 2 meters per second?
If a feather is pounded with a hammer, which experiences a greater force?
What is the magnitude of the force is always the same on both?
A marble is initially rolling up a slight incline at 0.2 m/s and starting at t=0s, decelerates uniformly at 0.05 m/s^2. At what time does the marble come to a stop?
What is 4 seconds?
A crate is sliding down an inclined ramp at a constant speed of 0.55 m/s. Where does the vector sum of all the forces acting on this crate point?
What is Upward horizontal?
Larry is carrying a 25 kg package at a constant velocity of 1.8 m/s across a room for 12s. What is the work done by Larry on the package during the 12s? (Use acceleration due to gravity g = 10 m/s?)
What is 0 Joules?
How long does it take for a rotating object to speed up from 15.0 rad/s to 33.3 rad/s if it has a uniform angular acceleration of 3.45 rad/s2?
What is 5.30 rad/s2?
Sean is pulling his son in a toy wagon. His son and the wagon together are 60 kg. For 3s Sean exerts a force which uniformly accelerates the wagon from 1.5 m/s to 3.5 m/s. What is the acceleration of the wagon with his son?
What is 0.67 m/s2?
An 8.7 hour trip is made at an average speed of 73 km/h. If the first third of the journey was driven at 96.5 km/h, what was the average speed for the rest of the trip?
What is 62 km/hr?
A 3.1 kg gun initially at rest is free to move. When a 0.015 kg bullet leaves the gun with a speed of 500 m/s, what is the speed of the gun?
What is 2.4 m/s?
What is the difference between static friction and kinetic friction, and how does it affect the motion of an object?
What is Static friction prevents stationary objects from moving, while kinetic friction opposes the motion of moving objects?
A carousel of radius r is initially at rest, and then begins to accelerate constantly until it has reached an angular velocity ω after 2 complete revolutions. What is the angular acceleration of the carousel during time?
(Hint: leave your answer in term of ω and π (pi)?
What is (w^2)/8pi ?
The Earth and the Moon attract each other with the force of gravity. The Earth’s radius is 3.7 times that of the Moon, and the Earth’s mass is 80 times greater than the Moon’s. The acceleration due to gravity on the surface of the Mooon is 1/6 the acceleration due to gravity on the Earth’s surface. If the distance between the Earth and the Moon decreases by a factor of 4, how would the force of gravity between the Earth and the Moon change?
What is Increase by a factor of 16?