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Physics Jeopardy

Work Power

Simple Machines

energy

Energy

Extra credit on quiz questions

Q 100

Q 100

Q 100

Q 100

Q 100

Q 200

Q 200

Q 200

Q 200

Q 200

Q 300

Q 300

Q 300

Q 300

Q 300

Q 400

Q 400

Q 400

Q 400

Q 400

Q 500

Q 500

Q 500

Q 500

Q 500

Final Jeopardy

100 Work Power

- How many joules of work are done on an object

when a force of 10N pushes it 5m?

100 Answer Work Power

- 50 J

200 Work Power

- How much work is done on a 50 N rock that you

carry horizontally across a 10 m room?

200 Answer Work Power

- Zero Joules of Work

300 Work Power

- How much power is expended if you lift a 50 N

rock 10 m in 2 second?

300 Answer Work Power

- 250 Watts

400 Work Power

- Marissa is jogging up a winding trail on a

mountain that has a height of 200 m. When she

finally gets to the top a sign tells her that the

trail has a distance of 800 m. If she has a mass

of 48 Kg, how much Work has she done?

400 Answer Work Power

- 96000 Joules

500 Work Power

Sam, who has a mass of 70Kg, races Jarvis, who

has a mass of 50Kg, up a hill with a height of

10m. If Sam gets up the hill in 5s and Jarvis

gets up the hill in 3.6s, who is more powerful?

500 Answer Work Power

- Sams power was 1400 Watts and Jarviss power was

also 1400Watts, so they had the same amount of

power.

100 Question Simple Machines

- The ratio of output force to input force of a

simple machine is called the - gear ratio
- fulcrum
- efficiency
- mechanical advantage.
- pivot point

100 Answer Simple Machines

d) Mechanical advantage

200 Question Simple Machines

How much less work does Jack do when he pulls a

rope of a pulley down .7m and lifts a mass of

540N that is supported by 4 ropes?

200 Answer Simple Machines

The work on both sides are the same.

300 Question Simple Machines

If Erin can only push with a force of 8N, how far

out must she be from the fulcrum of the lever if

she is lifting a mass with a weight of 40N that

is 30cm from the fulcrum?

300 Answer Simple Machines

150cm

400 Question Simple Machines

You build a lever to help you lift a tank. The

tank weighs 4000 N, and you need to lift it 2

meters. You decide on a whim to analyze what you

have done after lifting the tank and realize that

you moved your end of the lever a whopping 20

meters, but had to apply a 500 N force. What did

you find out the efficiency of your lever was?

400 Answer Simple Machines

80 efficiency

500 Question Simple Machines

How high does a 300N weight get lifted if it is

supported by a system of 4 pulleys like the

system below, and Mark pulls the rope .5m?

Irvin

300N

500 Answer Simple Machines

.125m

100 Question Energy

- Potential energy is the energy an object has

because of its ______. - Speed
- location
- size
- temperature
- density

100 Answer Energy

- B) Location

200 Question Energy

- If an object has kinetic energy, then it also

must have _______. - Impulse
- momentum
- acceleration
- Force
- None of the above

200 Answer Energy

b) momentum

300 Question Energy

A toy cart moves with a kinetic energy of 30J.

If its speed is doubled, what will its kinetic

energy be?

300 Answer Energy

- 120J

400 Question Energy

If Barbora, with mass of 46Kg jumps off the

top of the high school, height 20m, how much

kinetic energy does she have when she has fallen

a quarter of the distance?

400 Answer Energy

- 2300 J

500 Question Energy

A ball slides down the frictionless track shown

below. The ball has no velocity at position F.

G

E

F

C

A

B

a) To what point does the ball rise on the

opposite incline? b) At what point(s) in the

diagram is the speed at a maximum? c) At

what point(s) is the kinetic energy at a

maximum? d) At what point(s) is the speed

zero? e) At what point(s) is the potential

energy at a minimum? f) At what point(s) is

the potential energy at a maximum? g) At

what point(s) is the momentum at a maximum?

500 Answer Energy

a) E b) B c) B d) F E e) B f) F E g) B

100 Question energy

If you stand on top of a building and figure out

that you have a PE of 4000 Joules, what would

your KE be right before you hit the ground?

100 Answer energy

KE 4000 J

200 Question energy

How much work does it take to lift a 400 N slab

of brick a height of 5 meters?

200 Answer energy

W 200 J

300 Question energy

How much kinetic energy do you have if you are

running at a speed of 5 m/s and have a mass of 65

kg?

300 Answer energy

KE 812.5 J

400 Question energy

What is your speed if you have a KE of 32000 J

and a mass of 70 kg?

400 Answer energy

v 30.2 m/s

500 Question energy

What is your KE half way down a hill if the hill

has a height of 25 m and you have a mass of 55 kg?

500 Answer energy

KE 6875 J

100 Question Other

LOL

100 Answer Other

LOL

200 Question Other

LOL

200 Answer Other

LOL

300 Question Other

LOL

300 Answer Other

LOL

400 Question Other

LOL

400 Answer Other

LOL

500 Question Other

Just sad.

500 Answer Other

LOL

Final Jeopardy

Why will a looped coil attached to a DC power

supply not work as a good motor?

Final Jeopardy Answer