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3 rd Quarter Review

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3 rd Quarter Review. Question 1 - 10. A positive charge of 5.6*10^-6C is acted upon by a force of 50N at a certain distance. What is the electric field at that same distance?. Answer 1 – 10. =(50)/(5.6*10^-6) =8.93*10^6. Question 1 - 20. - PowerPoint PPT Presentation
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Page 1: 3 rd  Quarter Review
Page 2: 3 rd  Quarter Review

Electrostatics Math

Electrostatics MC

Electric Current & Circuits

Magnetism Math

Magnetism MC

10 10 10 10 10

20 20 20 20 20

30 30 30 30 30

40 40 40 40 40

50 50 50 50 50

Page 3: 3 rd  Quarter Review

Question 1 - 10

•A positive charge of 5.6*10^-6C is acted upon by a force of 50N at a certain distance. What is the electric field at that same distance?

Page 4: 3 rd  Quarter Review

Answer 1 – 10

•=(50)/(5.6*10^-6)•=8.93*10^6

Page 5: 3 rd  Quarter Review

Question 1 - 20

•How many electrons must be removed from an electrically neutral gold medal to give it a charge of 3.96*10^-6.

Page 6: 3 rd  Quarter Review

Answer 1 – 20

• =(3.96*10^-6)/(1.6*10^-19)• =2.475*10^13

Page 7: 3 rd  Quarter Review

Question 1 - 30

• What is the net force on charge 2 if charge 1 is -2C, charge 2 is 5C and charge 3 is 3C? D= 4m, k=1

Page 8: 3 rd  Quarter Review

Answer 1 – 30

Page 9: 3 rd  Quarter Review

Question 1 - 40• Three positive charges of q1=3.5*10^-6,

q2=8.0*10^-6 and q3=2.3*10^-6, respectively, are arranged in a triangle, as shown in figure. Find the magnitude of the electric force on the q2 charge.

Page 10: 3 rd  Quarter Review

Answer 1 – 40

Page 11: 3 rd  Quarter Review

Question 1 - 50• A charge q1=+10.0uc is at the origin, and a

charge q2=-18.0uc is on the x-axis .65m from the origin, Find the electric field strength at Point P, which is on the y-axis .255m from the origin. Angle is 62.

Page 12: 3 rd  Quarter Review

Answer 1 – 50

Page 13: 3 rd  Quarter Review

Question 2 - 10

•When there is an equal amount of positive and negative charges on an object, the object is………………..

Page 14: 3 rd  Quarter Review

Answer 2 – 10

•Neutral

Page 15: 3 rd  Quarter Review

Question 2 - 20

•Electric field lines indicate…………………..

Page 16: 3 rd  Quarter Review

Answer 2 – 20

•Direction and speed

Page 17: 3 rd  Quarter Review

Question 2 - 30

•The leyden jar shown had negative charge on the inside cup and the outside cup(the one in middle)………….

Page 18: 3 rd  Quarter Review

Answer 2 – 30

•Positive

Page 19: 3 rd  Quarter Review

Question 2 - 40

•When the charge is doubled on one particle, the attractive force between two particles is……

Page 20: 3 rd  Quarter Review

Answer 2 – 40

•Doubled

Page 21: 3 rd  Quarter Review

Question 2 - 50

•A metal can is brought near a negative charged PVC pipe. The can is _____________ to the pipe because the can is ____________

Page 22: 3 rd  Quarter Review

Answer 2 – 50

•Attracted and polarized

Page 23: 3 rd  Quarter Review

Question 3 - 10

•In solid conductors , electric current is the flow of………….

Page 24: 3 rd  Quarter Review

Answer 3 – 10

•Electrons

Page 25: 3 rd  Quarter Review

Question 3 - 20

•The relationship between current and potential in Ohm’s Law is…………

Page 26: 3 rd  Quarter Review

Answer 3 – 20

•Directly proportional

Page 27: 3 rd  Quarter Review

Question 3 - 30

• How much current will flow through .1 Ohm resistor?

Page 28: 3 rd  Quarter Review

Answer 3 – 30

VOLTAGE CURRENT RESISTANCE 4.655 46.55 .110.345 25.8625 .410.345 20.69 .515 46.55 29/90

Page 29: 3 rd  Quarter Review

Question 3 - 40

•A circuit has only one resistor, a 50 ohm one. If a second 50 ohm resistor is added in parallel, the overall resistance will be…

Page 30: 3 rd  Quarter Review

Answer 3 – 40

•25 ohms

Page 31: 3 rd  Quarter Review

Question 3 - 50

• What is the current for resistor 2?(2 decimals) • R1=13• R2=24• R3=20• R4=6

Page 32: 3 rd  Quarter Review

Answer 3 – 50

VOLTAGE CURRENT RESISTANCE 23.12 930/523 136.88 .29 246.88 .344 206.88 1.15 630 930/523 523/31

Page 33: 3 rd  Quarter Review

Question 4 - 10

• A wire carries a current of 20amps at an angle of 90 degrees to a magnetic field “B”. If the wire is 10m long and the magnetic force is 50N, what is the strength of the magnetic field?

Page 34: 3 rd  Quarter Review

Answer 4 – 10

Page 35: 3 rd  Quarter Review

Question 4 - 20

•A wire has a magnetic field of strength of 50T. If the wire is 16.5 meters long and the magnetic for is 100N. What is the current?

Page 36: 3 rd  Quarter Review

Answer 4 – 20

Page 37: 3 rd  Quarter Review

Question 4 - 30• Dr.V is on his Jetpack and is flying due east at

120m/s passing over Atlanta where the magnetic field of the earth is 3.3*10^-5 Tesla. Dr.V has a positive charge of 16*10^8C. What is the magnitude of magnetic force in Newton's on Dr.V?

Page 38: 3 rd  Quarter Review

Answer 4 – 30

Page 39: 3 rd  Quarter Review

Question 4 - 40• Dr.V found an unknown compound which has a force

of 5*10^-9N and a charge of 2nC and a has horizontal velocity of 5000m/s. He needs your help to help find him the magnetic field force of the

unknown compound.

Page 40: 3 rd  Quarter Review

Answer 4 – 40

Page 41: 3 rd  Quarter Review

Question 4 - 50

• A square coil of wire in a motor coil containing a single turn is placed in a uniform 10.8T magnetic field. Each side has a length of 10m and the current of the coil is 15amps. Determine the magnitude of the magnetic force on the top side of the wire.

Page 42: 3 rd  Quarter Review

Answer 4 – 50

Page 43: 3 rd  Quarter Review

Question 5 - 10

• Is this a positive or a negative current?

Page 44: 3 rd  Quarter Review

Answer 5 – 10

•Positive

Page 45: 3 rd  Quarter Review

Question 5 - 20

•Where is the magnetic field strength the closet?

Page 46: 3 rd  Quarter Review

Answer 5 – 20

•Close to a magnet pole

Page 47: 3 rd  Quarter Review

Question 5 - 30

• What is the name of the device that converts electric energy into mechanical energy?

Page 48: 3 rd  Quarter Review

Answer 5 – 30

• Electric motor

Page 49: 3 rd  Quarter Review

Question 5 - 40

• What direction is the force using FBI

Page 50: 3 rd  Quarter Review

Answer 5 – 40

•Up

Page 51: 3 rd  Quarter Review

Question 5 - 50

• What direction is the force using FBI

Page 52: 3 rd  Quarter Review

Answer 5 – 50

•In page and diagonal


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