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
what type of potential energy does an object like silly putty or a rubber band have
What is elastic potential energy
green plants convert light energy from the sun into _________ energy
What is chemical
There is a bell at the top of a tower that is 45 m high. The bell weighs 190N. Calculate the energy of the bell.
What is 8550 J potential energy
which of the following is not used to calculate kinetic energy: mass, weight, 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. What's the difference between the two books?
The higher book has more potential energy.
Friction when rubbing your hands together causes some mechanical energy to change to ___________ energy
What is thermal (heat)
If a volleyball that weighs 5kg is served from a height of 3 m, it will travel at a speed of 10 m/s. Calculate the kinetic energy of the ball.
What is 250 J
the greater ______ a moving object has, the more kinetic energy it has
What is mass
which of the following is not used to calculate potential energy: mass, velocity, height?
What is velocity
when a plant falls from a window, its ________ energy is transformed into kinetic energy
What is gravitational potential
If a volleyball that weighs 5kg is served from a height of 3 m, it will travel at a speed of 10 m/s. Calculate the potential energy of the ball.
What is 15
kinetic energy of an object increases as its ______ increases
What is velocity (speed)
a book and a feather are sitting on the same shelf. Which has more potential energy - why? Which has more kinetic energy - why?
Book has more PE because it has more mass. They have equal KE because they're both not moving.
When you put batteries in a flashlight and turn it on, the chemical energy changes to __________ energy.
Light
a boulder that weighs 100 kg is raised 10 m above the ground and then is dropped at a speed of 9.8 m/s. calculate the kinetic energy of the boulder
What is 9800 J
What is the formula for Mechanical Energy?
ME = KE + PE
the gravitational potential energy of an object depends on ________ and ________
What is weight and height
A baseball being hit by a bat is _____________ energy being converted into ____________ energy.
Potential, Kinetic
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