which has more kinetic energy, a large dog sitting on a sidewalk or a small can running down the street?
What is the small cat running down the street
100
what type of potential energy does an object like silly putty or a rubber band have
What is elastic potential energy
100
green plants convert light energy from the sun into _________ energy
What is chemical
100
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
100
energy in the form of motion is ________ energy
What is kinetic
200
which of the following is not used to calculate kinetic energy: mass, weight, velocity, height.
What is height
200
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.
200
Friction when rubbing your hands together causes some mechanical energy to change to ___________ energy
What is thermal (heat)
200
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
200
a rock at the edge of a cliff has ______ energy because of its position
What is gravitational potential energy
300
the greater ______ a moving object has, the more kinetic energy it has
What is mass
300
which of the following is not used to calculate potential energy: mass, velocity, height?
What is velocity
300
when a plant falls from a window, its ________ energy is transformed into kinetic energy
What is gravitational potential
300
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
300
suppose a juggler is juggling oranges, at an orange's highest point, what form of energy does it have the most of?
What is mostly potential
400
kinetic energy of an object increases as its ______ increases
What is velocity
400
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.
400
When you put batteries in a flashlight and turn it on, the chemical energy changes to __________ energy.
Light
400
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
400
Before you drop a pencil from the top of a mountain 1200 ft. heigh and the pencil weighs 3 ounces, what is the pencil's potential energy?
3600
500
What is the formula for Kinetic Energy?
KE = mv^2/2
500
the gravitational potential energy of an object depends on ________ and ________
What is weight and height
500
A baseball being hit by a bat is _____________ energy being converted into ____________ energy.
Potential, Kinetic
500
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
500
describe the energy conversions that take place during a roller coaster that goes up a hill, down a hill, back up a smaller hill, and down.