Science

Quiz
•
Physics
•
10th Grade
•
Hard
Standards-aligned
Charles Martinez
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
A wire has a certain electrical resistance.
The diameter and length of the wire may be changed.
Which pair of changes must cause the resistance of the wire to increase?
A
B
C
D
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
The diagram shows a battery connected to two resistors.
Four students separately measure the electromotive force (e.m.f.) of the battery, the current in the resistors, and the potential difference (p.d.) across resistor R.
Their results are shown in the table below. Which row shows values with their correct units?
emf= 3.0 A
current= 0.30 V
p.d.=1.5A
emf= 3.0 A
current= 0.30 A
p.d.=1.5V
emf= 3.0 V
current= 0.30 V
p.d.=1.5A
emf= 3.0 V
current= 0.30 A
p.d.=1.5V
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
A resistor converts 350J of electrical energy to other forms of energy. What is the amount of charge that flows through it when a p.d. of 7V is applied across it?
0.20 C
50 C
350 C
2450 C
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
A charge of 4.00 x 10^4 C flows through an electric heater. If the amount of electrical energy converted into thermal energy is 9.00 MJ, calculate the potential difference across the ends of the heater.
330 V
325 V
225 V
210 V
Tags
NGSS.HS-PS3-1
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
The diagram shows a piece of metal resistance wire. Which wire, made of the same metal, has a smaller resistance?
a wire of greater length with the same diameter
a wire of the same length with a smaller diameter
a wire of greater length with the same diameter
a wire of the same length with a larger diameter
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
A student wishes to measure first the electromotive force (e.m.f.) of a battery, and then the potential difference (p.d.) across a resistor.
She has the resistor, the battery and some connecting wires. What else does she need?
a voltmeter only
an ammeter only
an ammeter and a voltmeter
a force meter (newton meter) and a voltmeter
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
A small heater has a rating of 15 V, 4 A. How much energy does it consume if it is turned on for two minutes?
7.5 J
120 J
450 J
7200 J
Tags
NGSS.HS-PS3-1
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