Team 1
0
Team 2
0
Teams
Name
Score
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Loading
15
×
Ohm's Law formula
I=U/R
Oops!
Check
Okay!
Check
15
×
Why is a parallel connection is used in houses? Why is a series connection not used in houses?
Parallel: If one bulb burns out, the rest keep working.; Series:If one device breaks, the circuit opens โ all devices turn off
Oops!
Check
Okay!
Check
×
thief
Give points!
5
10
15
20
25
×
magnet
Take 20 points!
Okay!
×
rocket
Go to first place!
Okay!
×
thief
Give points!
5
10
15
20
25
15
×
Properties of parallel combinations
1.U=U1=U2; 2. I=I1+I2; 3. 1/R=1/R1+1/R2
Oops!
Check
Okay!
Check
15
×
Electron flow is in the _________ direction to the flow of current.
opposite
Oops!
Check
Okay!
Check
15
×
If the cross-sectional area is doubled, what happens to resistance?
Resistance decreases
Oops!
Check
Okay!
Check
15
×
Definition of Power
Power is the rate at which energy is consumed in a unit of time
Oops!
Check
Okay!
Check
×
eraser
Reset score!
Oops!
×
rocket
Go to first place!
Okay!
×
fairy
Take points!
5
10
15
20
25
×
banana
Go to last place!
Oops!
15
×
Symbol and Unit of electric current
Symbol is I; Unit is A
Oops!
Check
Okay!
Check
15
×
Properties of series combinations:
1. I=I=I; 2.U=U1+U2: 3. R=R1+R2
Oops!
Check
Okay!
Check
15
×
Definition of Joule-Lenz Law
ยซhat electric current produces heat by passing through a conductor
Oops!
Check
Okay!
Check
15
×
ยซA resistance of a conductor depends on factors:
length, cross-sectional area (thickness) and type of material; Temperature
Oops!
Check
Okay!
Check
15
×
What is the electric current
Electric current is the flow of electric charges (usually electrons) through a conductor such as a wire.
Oops!
Check
Okay!
Check
×
heart
Other team wins 10 points!
Oops!
×
gold
Win 50 points!
Okay!
×
fairy
Take points!
5
10
15
20
25
×
lifesaver
Give 5 points!
Oops!
20
×
A wire has resistivity 2 ร 10โปโถ ฮฉยทm, length 3 m, and area 1 ร 10โปโถ mยฒ. Find the resistance.
6
Oops!
Check
Okay!
Check
15
×
What charge does pass through 0.5 Ampere lamp in 200 seconds?
100 C
Oops!
Check
Okay!
Check
×
Restart
Review
Join for Free
;
Your experience on this site will be improved by allowing cookies.
Allow cookies
