Resistance and Factors Affecting Resistance

Assessment

Resistance and Factors Affecting Resistance

ninja coder

Physics

Grade10

10 Plays

100 Participants

Worksheet

10 Qs

1.
Multiple Choice
1 pts•30 s
Define resistance in an electrical circuit.
Answer choices
The flow of electric current
The opposition to the flow of electric current
The production of heat in a conductor
The voltage across a conductor
2.
Multiple Choice
1 pts•30 s
Identify the unit of resistance.
Answer choices
Ampere
Volt
Ohm
Watt
3.
Multiple Choice
1 pts•30 s
Name the factor that increases resistance when the length of a conductor is increased.
Answer choices
Cross-sectional area
Length
Temperature
Material
4.
Multiple Choice
1 pts•30 s
Describe how the cross-sectional area of a conductor affects its resistance.
Answer choices
Resistance increases with larger area
Resistance decreases with larger area
Resistance is unaffected by area
Resistance depends only on length
5.
Multiple Choice
1 pts•30 s
State the effect of temperature on the resistance of a metallic conductor.
Answer choices
Resistance decreases with increasing temperature
Resistance increases with increasing temperature
Resistance remains constant
Resistance becomes zero at high temperature
6.
Multiple Choice
1 pts•30 s
Point out which material property affects the resistance of a conductor.
Answer choices
Density
Resistivity
Mass
Volume
7.
Multiple Choice
1 pts•30 s
Clarify the relationship between resistance and the resistivity of a material.
Answer choices
Resistance is inversely proportional to resistivity
Resistance is directly proportional to resistivity
Resistance is equal to resistivity
Resistance is unrelated to resistivity
8.
Multiple Choice
1 pts•30 s
Indicate the formula used to calculate resistance based on its factors.
Answer choices
R = ρA/L
R = ρL/A
R = L/ρA
R = A/ρL
9.
Multiple Choice
1 pts•30 s
Explain why copper wires are preferred over iron wires in electrical circuits.
Answer choices
Copper has higher resistivity
Copper has lower resistivity
Copper is heavier
Copper is less conductive
10.
Multiple Choice
1 pts•30 s
Determine the effect on resistance if the length of a wire is doubled and its cross-sectional area is halved.
Answer choices
Resistance remains the same
Resistance increases by four times
Resistance doubles
Resistance decreases by half