kinetic energy
which has more kinetic energy, a large dog sitting on a sidewalk or a small cat running down the street?
What is the small cat running down the street
The stored energy of an object due to its position, shape, or condition is known as _____.
What is potential
What is the ability to do work?
What is energy.
There is a bell at the top of a tower that is 45 m high. The bell weighs 190kg. Calculate the potential energy of the bell.
What is 83,790 J
energy in the form of motion is ________ energy
What is kinetic
which of the following is not used to calculate kinetic energy: mass, velocity, height.
What is height
two copies of the same book are in a book case. one book is twice as high as the other. they have _______ potential energy
a. the same
b. different
What is different
Which of the following has the most potential energy?
a. a kid speeding down a hill on a sled
b. a car at the top of a hill
c. a semi-truck at the top of a hill
What is c. a semi-truck at the top of a hill
If a 5kg volleyball is served from a height of 3 m, it will travel at 10 m/s. Calculate the kinetic energy of the ball.
What is 250 J
a rock at the edge of a cliff has ______ energy because of its position
What is potential energy
the greater ______ a moving object has, the more kinetic energy it has
What is mass or
which of the following is not used to calculate potential energy: mass, velocity, gravitational acceleration, height
What is velocity
when a plant falls from a window, its ________ energy is transformed into kinetic energy
What is potential
If a 5kg volleyball is served from a height of 3 m, it will travel at 10 m/s. Calculate the potential energy of the ball.
What is 147 J
Which of the following is an example of kinetic energy at work?
a. a kid on a sled at the top of the hill
b. a person running the mile
c. a parked car
What is b. a person running the mile
kinetic energy of an object increases as its ______ increases
What is velocity
A book and a feather sitting are on the same shelf. Which object has more potential energy?
What is a book
A rollercoaster car's energy is proportional to what property?
What is mass
a 100kg boulder is raised 10 m above the ground and then is dropped at a speed of 14 m/s. calculate the kinetic energy of the boulder
What is 9800 J
What is the amount of force required to move 1kg of mass 1 m/s/s?
What is a Joule.
doubling an objects velocity will _____ its kinetic energy
What is quadruple
the gravitational potential energy of an object depends on ________ and ________
What is mass and height
What two factors dtermine how much kinetic energy an object has?
What is speed and position (height)
a baby carriage is sitting at the top of a hill that is 21 m high. the carriage with the baby has a mass of 1400 grams. Calculate the potential energy of the carriage and baby.
What is 288, 120 J
How can you lower the potential energy of an object resting on a shelf?
What is lower the height of the obeject (move it to a lower shelf).