Physical Science

ok so i keep getting one wrong on a 4 question test and failing so can someone tell me what im getting wrong

1. What causes an electric current in a wire?
A. Electric fields cause atoms to move in the wire.

B. Electrons flow because of electrical attraction and repulsion.

C. Electrons move because of heat.

D. Electrons build up in the wire and create a charge.

(my answer for this one was B)

2. How does an insulator stop the flow of an electric current?

A. Insulators have too many electrons.

B. Insulators have a positive charge so they absorb electrons.

C. Electrons in an insulator do not move readily.

D. Insulators convert electric energy to other forms of energy.

(my answer for this one is A)

3. What material would make the best heating element for an electric range?

A. a resistor, which converts some electric energy to thermal energy

B. an insulator, which stops the flow of electricity

C. a conductor, which carry electric currents

D. a conductor surrounded by an insulator

(my answer for this one is A)

4. Which of the following materials is a conductor of electric current?

A. a plastic game piece

B. a wooden spoon

C. a copper penny

D. a glass window

(my answer for this one is C but i don't think it's right)

thanks! :o)

asked by s
  1. 1B

    posted by Elena
  2. thank you!

    posted by s
  3. wow that was close
    i know that person sounds smart but Elena is smarter

    posted by peanut butter boy
  4. B

    posted by Riley Matthews
  5. i agree with them

    posted by kje

Respond to this Question

First Name

Your Response

Similar Questions


    Consider the following test scores obtained by a class. Test score 90 80 70 60 50 Frequency 1 4 11 6 2 Find the standard deviation (rounded to the nearest hundredth). -------------------------------- I've posted this question
  2. Math

    Consider the following test scores obtained by a class. Test score 90 80 70 60 50 Frequency 1 4 11 6 2 Find the standard deviation (rounded to the nearest hundredth). -------------------------------- I've posted this question
  3. ap statistics

    In hypothesis testing, β is the probability of committing an error of Type II. The power of the test, 1 - β, is then: A. the probability of failing to reject H0. B. the probability of rejecting H0 when HA is true C. the
  4. Math

    On the six tests in her social studies course, Jerelyn's score were 92, 78, 86, 92, 95, and 91. Determine the median and the mode of her scores. If Jerelyn took a seventh test and raised the mean of her scores exactly 1 point,
  5. Math

    ella took a biology test of 54 question. She got 5/6 with a question correct how many questions did she get wrong on her biology test?
  6. Statistics

    There are 3 short questions on math test. for each question, 1 mark will be awarded for a correct answer and no mark for wrong answer. if the probability that mary correctly answers a question in a test is 2/3, determine the
  7. Anonymous: Re: Grammar

    I checked the first 25 answers you posted for your 50-question grammar test. You have 10 of the 25 wrong for a 40% score. I couldn't take any more! Please do not post this test again. I'm sure your instructor does not want the
  8. math

    A test had 200 questions .Each correct answer carried 2 marks.Each wrong answer carried -1/2 marks and unanswered question fetched no marks .Ajay attempted all the question in the test and he scored 360 marks.What would his marks
  9. General Math I

    Hi Ms. Sue this is Shayna here. I am writing you this time, because I am very confused in a question of a test I just took this was the question Susan wants to buy a paddle boat for $840. She will pay 20% down and pay the rest in
  10. English for john browm

    Let me give you something on "multiple-choice" items that may help you to guess better. Many teachers prepare multiple-choice tests because they are easy to mark and offer the student the advantage of actually seeing what the
  11. math-statistics

    18) Which of the following is the most significant result? A) P<.001 B) P<.005 C) P=.05 D) P>.05 Okay, I have the answer key and know the question is A, but I always thought that if the P value is greater than .05 than it

More Similar Questions