Wind/Water Source
Sound
Heat
Mechanical Energy
Motion/Speed
100
Which form of energy does a river use to move a raft
a) heat
b) kinetic
c) potential
d) sound
kinetic
100
Sound is made by
________________
and travel in
_______________
and can not travel in
_________________
vibrations
waves
Space
100
What two forms of energy are produced by the sun and by a fire?
a) heat and sound
b) light and electricity
c) heat and light
d) chemical and heat
c
100
Which object has potential but not kinetic energy?
A Roller coaster car on
a) the way up a hill
b) stopped at the top of a hill
c) halfway down a hill
d) nearly all the way down a hill
b) stopped at the top of a hill
100
A moving car presses the brakes. What is the stopping force?
A) Heat
B) Sound
C) Gravity
D) Friction
D) Friction is a stopping force. The energy of motion is often converted into heat.
200
Flowing water can be converted into different forms of usable energy. Which can be generated from falling water?
a) electrical energy
b) fossil fuels (gas/oil)
c) solar energy
d) wind energy
200
Which drum would have a lower pitch?
a) a small, tight drum that creates short, fast waves
b) a small, loose drum that creates short, slow waves
c) a large, tight drum that creates long, fast waves
d) a larges, loose drum that creates long, slow waves
d) long and slow
Low pitch - Long , large, slow waves
High pitch - Short, small, fast waves
200
Mr. Festa needs a cup to put his Ice cold Coke in. Should he use a
a) metal cup because it is a good insulator
b) metal cup because it is a good conductor
c) foam cup because it is a good insulator
d) foam cup because it is a good conductor
Foam cup - good insulators
Insulators- lots of space between particles- Temp changes slowly
Conductors (most metals) little space between participles - Temp changes quickly
200
Mr. Sullivan pulled back a spring 2cm to hit a ball. His ball traveled 3meters. Mr. Festa pulled back a spring 3 cm to hit a ball. Mr. Festa's ball will travel
a) the same distance as Mr.Sullivan's
b) a greater distance than Mr. Sullivan's
c) a shorter distance than Mr. Sullivan's
b) Mr. Festa increased the potential energy by pulling the spring back more. When he released the spring, the energy was converted into kinetic energy and the ball would travel further.
200
Mrs. Sullivan's favorite coffee mug rolled off the table and shattered on the floor. What happened to the mug?
a) It changed position
B) It changed direction
C) It changed position and direction
D) who cares
First... I care!
C) the position and the direction changed
300
What are following objects use energy from ______ to function?
a) Cars/Boats ____________
b) River rafts/Hydro-Electric dams___________
c) Sailboats/Hang gliders/___________
a) gas engines
b) flowing water
c) flowing air
300
How can you increase the pitch of a sound?
a) make the object vibrate faster
b) make the object vibrate slower
c) make the object vibrate louder
d) make the object vibrate quitter
a
Low pitch - Long, large, slow waves
High pitch - short, small, fast
Volume
more energy (louder) or less energy quiter
300
Mr. Sullivan left a spoon in his hot spaghetti sauce. He noticed his spoon became warmer. What type of heat transfer was this?
a) Conduction
b) Convection
c) Radiation
a) Conduction
Part 2:
When will the spoon stop changing temperature?
300
Mechanical Energy is the sum of what two energies
Kinetic (moving)
and Potential (could move)
300
Mrs. Wirth, Mr. Sullivan, and Mr. Festa were in a race. Mr. Festa ran 3m/h, Mrs. Wirth ran 4m/h, and Mr. Sullivan ran 2m/h. Who was the fastest runner?
Mrs. Wirth