These pages are designed to help students prepare for the tests, quizzes, and other assignments throughout the duration of the course.

 

Parents


Parents, be sure to check PowerSchool on a regular basis so that you can keep up to date on your child's performance in the class. If you have any questions, feel free to email me.

 

 

Practice Problems

 

Find the type of practice problem that you need.
There are Concept Questions, as well as Math Practice Problems.
You can put in any value you want or have it put in a set of numbers for you.
Pop-up Blockers will need to be turned off for these to work!!

Electricity

Multiple Choice

Answer all the Multiple Choice Questions then hit "Check" after the last multiple choice question

An object becomes positively charged when it ________.
loses electrons
loses protons
gains electrons
gains neutrons

Lightning is an example of?
conduction
static discharge
series circuit
Ohm's Law

Charging of items caused by bringing a charged object close to a neutral object, in which the electrons rearrange themselves on the neutral object is called?
conduction
induction
resistance
static electricity

The area around an electric charge in which the electrical force of attraction or repulsion is exerted is called the _________?
circuit
electroscope
electrical field
electrical current

The power (or electrical push) that allows electricity to flow through a circuit is called
Voltage Difference
electric current
resistance
induction

Which of the following can provide a voltage difference for circuit?
dry cell battery
wet cell battery
electrical outlet
all of the above

Which of the following types of wires has the most resistance?
long, thick wires
short, thin wires
long, thin wires
short, thick wires

Which of the following is true about 3 lightbulbs that are placed in series?
the lightbulbs produce brighter light than when lit separately
if one lightbulb goes out, then they all go out
the lightbulbs produce dimmer light than when lit separately
Both A and B
Both B and C

Which of the following is true about 3 lightbulbs that are placed in parallel?
the lightbulbs produce brighter light than when lit separately
if one lightbulb goes out, then they all go out
the lightbulbs produce dimmer light than when lit separately
Both A and B
Both B and C

A disadvantage of parallel circuits is ________.
if one light goes out, then all the lights go out
more current flows through the circuit than if they were placed in series
higher chance of the circuit overheating when objects are in parallel
there are no disadvantages of a parallel circuit

In a circuit, if you increase the voltage it will cause ___________
current to increase
current to decrease
increases the resistance
decreases the resistance

What is the process of connecting an obect to Earth with a conductor called?
charging
draining
grounding
induction

Resistance in wires causes electrical energy to be converted to what energy form?
chemical energy
sound energy
thermal energy
nuclear energy

Fill in the Blank and True/False

Best used with lowercase letters only
1. The SI unit for Power is: ?

2. The SI unit for resistance is: ?

3. The SI unit for voltage difference is: ?

4. If you bring a positively charged object close to a negatively charged object, the objects will: ?

5. an object that allows the easy flow of electrons is called: ?

6. True or False: A kilowatt-hr is the unit for electrical energy.

Ch. 7 Math Problems

Math Problems

1. If a circuit has amps of current running through it, and the resistance of the load was ohms, then how much voltage was being used??

2. If the voltage of a battery was volts and the resistance of the circuit was ohms, then how much current was going through the circuit?

3. A lightbulb is plugged into an outlet that has volts and this results in a current of amps, then how much resistance the lightbulb have?

4. A hair dryer gets a current of amps when plugged into a volt outlet. What is the power rating of the hair dryer?

5. A watt light bulb that is turned on for seconds uses how much electrical energy?

6. A toaster oven uses watt-seconds of energy in order to cook toast. If the toaster oven is turned on for seconds then what is the power rating of the toaster oven?

7. A remote control car uses watt-seconds of energy in driving around a dirt track. If the car has watts of power, then how long does it take for the car to drive around the track?

8. How much did it cost to run a water heater that used kilowatt-hours of energy, if the power company charges $0. per kilowatt-hour?

9. How much did the power company charge (rate) per kilowatt-hour if the total cost was $.00 for using kilowatt-hours of energy during the month?

10. If a crock pot was turned on to make dinner. The crock pot was plugged into an outlet of volts which provided a current of amps. If the crock pot was left on for hours, then what would be the cost of running the crock pot if the rate was $0. per kilowatt-hour?






Physical Science