Energy
Waves
Circuits
Data Analysis
Grab Bag
100

At which point is the car traveling the fastest?

Point C because it has the lowest GPE and therefore the highest KE.

100

What is the amplitude of this wave?

0.1m

100

In a circuit, what makes it harder for the current to flow?

Resistance

100

Physics students think that it will take longer for heavier cars to stop then for lighter cars to stop.  Multiple cars with different masses are traveling at 60 mph.  At a certain point, all cars slam on the brakes. The distance it takes for each car to stop is then measured.

What is the hypothesis?

Heavier cars will travel farther when stopping than lighter cars.

100

Which wave has most energy?

The purple wave because it has the highest frequency.

200

If the car has 1000J of energy at the beginning of the rollercoaster ride.  How much total energy does it have at point C?

1000J

200

What is the wavelength of this wave?

4m

200

You have a 3V battery with a current of 1A.  What is the resistance in this circuit?

3 ohms.

200

Physics students think that it will take longer for heavier cars to stop then for lighter cars to stop.  Multiple cars with different masses are traveling at 60 mph.  At a certain point, all cars slam on the brakes. The distance it takes for each car to stop is then measured.

In graphing this data, what will go on the x-axis?

Mass of cars

200

Identify the types of energy in the following scenario.

Chemical, kinetic, thermal, vibrational, radiant, gravitational potential energy

300

Is the roller coaster going faster at Point B or Point D?

Point B because it has less GPE and therefore more KE, due to the law of conservation of energy.

300

At the beach, a wave lands on the sand every 3 seconds. If the tops of the waves are 15 meters apart, what is the wave’s speed?

5 m/s

300

You have 4 3V batteries.  The circuit has a resistance of 6ohm.  What is the current in the circuit?

2A

300

Physics students think that it will take longer for heavier cars to stop then for lighter cars to stop.  Multiple cars with different masses are traveling at 60 mph.  At a certain point, all cars slam on the brakes. The distance it takes for each car to stop is then measured.

In graphing this data, what will go on the y-axis?

Distance it takes to stop

300

What happens to kinetic energy when there is friction present?

It transforms into thermal energy.

400

If the car has 1000J of energy at point A, how much kinetic energy does it have at point B?

500J

400

A music note with a frequency of 680 hertz is played.  Its wavelength is 0.5 m.  What is the speed of this sound wave?

340 m/s

400

What is the total resistance if you have a series circuit with the following three resistors?

9ohms

400

Physics students think that it will take longer for heavier cars to stop then for lighter cars to stop.  Multiple cars with different masses are traveling at 60 mph.  At a certain point, all cars slam on the brakes. The distance it takes for each car to stop is then measured.

In graphing this data, what will you title the graph?

Distance it takes car to stop vs. mass of car

400

What makes bimaterial strips bend?

The rate of thermal expansion between the two materials is different so it will bend when heated or cooled, as one material tries to expand more than the other material.

500

What is the law of conservation of energy?

Energy can change forms but it is never created or destroyed.

500

What is the wavelength for the wave below if it has a speed of 60m/s?

T=4 s

v=60m/s

wavelength=240m

500

You have a circuit.  The circuit has a 3v battery and you change the battery to a 9v battery.  What happens to the current?

The current triples!

500

Physics students think that it will take longer for heavier cars to stop then for lighter cars to stop.  Multiple cars with different masses are traveling at 60 mph.  At a certain point, all cars slam on the brakes. The distance it takes for each car to stop is then measured.

What is the independent variable?  What is the dependent variable?

Independent: Mass of car

Dependent: Distance to stop

500

What's the frequency of this wave?

T = 20s, f = 0.05hz