Springs
A vertical spring with a spring constant of k is 7.14 N/m is stretched past its equilibrium point when a 0.42-kg mass is attached to it. How much longer is the spring now? (in cm)
What is 57.7 cm?
This is the unit that Work is measured in.
What is a Joule (J)/What are Joules (J)
If you increase the displacement of a person and its gravity/acceleration, what would happen to the work that person is exerting?
What is increases?
If you double an objects height, this happens to your Potential Energy.
What is doubling your Potential Energy?
This happens to power when you increase the amount of work done, the power ... (Increases? / Decreases?)
What is increases
A vertical spring with a spring constant of k is 780 N/m is stretched past its equilibrium point when a 48000-g mass is attached to it. How much longer is the spring now? (in cm?)
What is 60.4 cm?
This is the unit that power is measured in blank.
What is Watts
ALSO SOLVE THIS: If 54600 J of work is done on an object that causes it to accelerate at 0.594 m/s2 over 97.2 m, what is the mass of the object?
What is 946 kg?
An object moves down a ramp without friction. The object loses potential energy and gains this type of energy.
What is KE?
ALSO SOLVE THIS: How long would it take for a 198-W motor to perform 19200 J of work?
What is 97.0 s?
A vertical spring with a spring constant of k is 30000 N/m is stretched past its equilibrium point when a 200000-g mass is attached to it. How much longer is the spring now? (in m?)
What is 0.0654 m?
This is another way to express the unit Joules for work. (Work = Force * Distance, Joules = Blank * Blank)
What is Newton * Meters -- N*m
If 70100 J of work is necessary to lift an object by 442 m, what is the mass of the object?
If I double an objects velocity, I do this to my kinetic energy.
What is quadruple Kinetic Energy /KE becomes 4 times as big.
(x 2 points)
How much power is needed to perform 1910 J of work for 9.59 s?
What is 199 W?
A horizontal spring with a 0.66-kg mass attached at its end is stretched 90 cm past its equilibrium point and released. If the spring oscillates with a frequency of 0.526 s-1, what is the maximum kinetic energy the mass can achieve?
(x2 of total for the first three teams that show me the right answer on a piece of paper)
What is 2.92 J?
This is the unit that PE is measured in.
What is Joules / J?
If 2440 J of work is applied to a 40.7-kg object, how fast is it moving now? (Use work as KE being transferred)
What is 10.9 m/s?
58200 J is required to lift an object 34.1 m above the ground. What is its mass?
What is 174 kg (X3 for choosing this one)
How high can a 150-W engine lift a 671-kg object in 6.93 s?
What is 0.158 m?
A horizontal spring with k = 4 N/m has a 16.3-g mass attached at its end. The spring is then stretched 0.04 m past its equilibrium point and released. What is the maximum velocity the mass can achieve while the spring is oscillating?
(x 3 of total for the first three teams that show me the right answer on a piece of paper)
What is 0.627 m/s?
This is the unit that Kinetic Energy is measured in.
What is Joules / J? (X2 POINTS FOR CHOOSING THIS ONE)
An object is accelerated at 0.295 m/s2 over 93.9 m in 49.1 s by a 2.77-W engine. What is its mass?
4.91 kg
What is the mass of an object moving at 20.2 m/s if its kinetic energy is 1990 J?
What is 9.75 kg?
GREAT YOU EARN 500 POINTS FOR TRYING A HARD ONE WITH NO FEAR :)
What is GREAT?