Energy Jeopardy Energy Basics Calculati ng KE & PE Work & Power Problem Solving Grab Bag 10 10 10 10 5 20 20 20 20 10 30 30 30 30 15 40 40 40 40 20 50 50 50 50 25
Jan 02, 2016
Energy JeopardyEnergy Basics
Calculating KE & PE
Work & Power
Problem Solving
Grab Bag
10 10 10 10 5
20 20 20 20 10
30 30 30 30 15
40 40 40 40 20
50 50 50 50 25
Calculating KE and PE – 20 points
A 10 kg dog is sitting on a table 250 cm high. If the ground is considered
to be at a height of 0, what is the dog’s gravitational potential energy?
Calculating KE and PE – 30 points
Frosty the Snowman is bounding through the forest. Suddenly a
blizzard hits! The snowfall causes Frosty’s mass to double and his speed to halve. How does his kinetic energy
change as a result?
Calculating KE and PE – 40 points
A 10 kg wreath goes sailing through the air at 5 m/s, 3 m off the ground. A 150 kg pine tree is floating in place 0.5
m off the ground. Which has more mechanical energy?
Calculating KE and PE – 50 points
The acceleration due to gravity on the moon is 1.67 m/s^2. Which has more gravitational potential energy – a 100
kg person 50 m off the Earth’s surface, or a 200 kg lion 100 m off the
moon’s surface? (You must justify your answer to get points.)
Work and Power – 40 points
Rudolph can lift 400 g by 5 m off the ground in 0.5 s. Mrs. Claus can lift 56 kg by 2 m off the ground in 15 s. Who
is more powerful?
Work and Power – 50 points
Billy Jean lifts a 10 kg chinchilla 5 m off the ground over the course of 1.5 seconds. Penny Lane lifts a 25 kg chinchilla 2 m off the ground in 1
second. Who does more work? (You must justify your answer.)
Problem Solving – 10 points
A 5 kg menorah falls from a shelf 3 m above the ground. How fast is it
moving right before it hits the ground?
Problem Solving – 20 points
A 30 kg elf runs up the stairs to Santa’s workshop. If the stairs are 10 m high, and the elf runs up them in 15 seconds, how powerful is the little elf?
Problem Solving – 30 points
How much kinetic energy does a 2000 kg car have when it moves 100
km/hr?
Problem Solving – 40 points
A 500 kg roller coaster car starts out at a peak of 100 m, zooms down, then goes back up another peak. If the car
loses 80,000 J of energy due to friction as it descends, what is the maximum possible height of the
second peak?
Problem Solving – 50 points
A 50 kg Grinch rolls down a 50 m hill starting from rest. How fast will he be
moving when he’s 10 m from the ground?
Grab Bag – 5 points
Which statement is correct?
“I’m so excited about physics, I need to lay down for a while.”
“I’m so excited about physics, I need to lie down for a while.”
Grab Bag – 10 points
In which of the following art forms does Ms. DeFord have NO training?
(Not counting elementary school classes…)
Instrumental musicClassical voice
Visual artsBallroom dance
Grab Bag – 15 points
Name all of the arts conservatories here at OCHSA. (No pulling out
programs or other items to look at!)
Grab Bag – 20 points
The musical Sweeney Todd gathered a lot of interest when it was made into
a movie starring Johnny Depp in 2007. Who composed the original
musical?