Is an electron in a Uranium atom the same as an electron in a Hydrogen atom?

Yes, but only when both atoms are neutral

Yes, but only when they are equidistant from the nucleus

Why don't we feel electrical forces if that force is far greater than gravity?

Charges cancel, but mass cannot

Gravity is on a macroscopic scale only

Electric force acts on a microscopic scale only

Which of the following statements is false about electric field lines

electric field lines are always straight lines

electric field lines cannot cross

electric field lines point away from positive charge

electric field lines show how a proton would move in an electric field

It is observed that Balloon A is charged negatively. Balloon B exerts a repulsive effect upon balloon A. Would the electric field vector created by balloon B be directed towards B or away from B and why?

towards because electric field lines point away from positive charges

towards because electric field lines point away from negative charges

away because electric field lines point away from negative charges

away because electric field lines point toward positive charges

The electrical force between charges is strongest when the charges are

the electric force is constant everywhere.

During a physics lab, a plastic strip was rubbed with cotton and became positively charged. The correct explanation for why the plastic strip becomes positively charged is that ...

the plastic strip lost electrons to the cotton during the charging process

the plastic strip acquired extra protons from the cotton.

the plastic strip acquired extra protons from the charging process

protons were created as the result of the charging process

During charging a capacitor through a resistor

the current in the circuit decreases exponentially with time

the current in the circuit increases linearly with time

the current in the circuit decreases linearly with time

the current in the circuit increases exponentially with time

During discharging a capacitor through a resistor

the current in the circuit decreases exponentially with time

the current in the circuit increases linearly with time

the current in the circuit decreases linearly with time

the current in the circuit increases exponentially with time

How is the capacitance (C) of a parallel-plate capacitor affected by the charge on the plates ?

C does not depend on the charge on the plates

C depend on the charge on the plates

C is vanished when there are plates

C is accumulated on one side only

How is the capacitance of a parallel-plate capacitor affected by the potential difference across the capacitor ?

C does not depend on the potential difference across the capacitor

C depend on the potential difference across the capacitor

C partially depend on the potential difference across the capacitor

C sometime depend on the potential difference across the capacitor

How is the capacitance of a parallel-plate capacitor affected by the area of each plate?

C is directly proportional to the area A of each plate

C is inversely proportional to the area A of each plate

C is partially proportional to the area A of each plate

C is fully proportional to the area A of each plate

How is the capacitance of a parallel-plate capacitor affected by the distance between the plates ?

C is inversely proportional to the distance d between the plates

C is directly proportional to the area A of each plate

C is partially proportional to the area A of each plate

C is not affected by the area A of each plate

How is the capacitance of a parallel-plate capacitor affected by filling the space between the plates with an insulator ?

C increases when the space between the plates is filled with an insulator, ε r >1

C stable when the space between the plates is filled with an insulator, ε r >1

C reduces when the space between the plates is filled with an insulator, ε r >1

C fluctuate when the space between the plates is filled with an insulator, ε r >1

Summative Test Physics 2

Authored by jhayr ebreo

Physics

12th Grade

NGSS covered

Used 53+ times

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100 questions

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MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Electrical charging can occur by

Friction

Conduction

Induction

All of these

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

The net charge of a typical atom is

# of protons in the nucleus

# of electrons surrounding the nucleus

Zero if the atom is neutral

Always zero

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

When you brush your hair you scrape off electrons, and your hair

becomes positively charged

becomes negatively charged

becomes positively and negatively charged

remains uncharged, or neutral

When we say charge is conserved, we mean that charge can

only be transferred from one place to another

transform into equivalent forms

be created or destroyed

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

As a pair of charges is brought close together, the force between them

Increases

Decreases

Increases only if they are the same sign

Increases only if they are the opposite sign

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

When a negatively charged balloon is brought close to a wall, the positive charges in the wall are

attracted to the balloon

repelled from the balloon

too bound to be affected by the balloon

neutralized

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

If a storm cloud is negatively charged on bottom, and equally as positively charged on top

the net charge is negative

the net charge is positive

the net charge is zero

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Summative Test Physics 2

Electrical charging can occur by

The net charge of a typical atom is

When you brush your hair you scrape off electrons, and your hair

When we say charge is conserved, we mean that charge can

As a pair of charges is brought close together, the force between them

When a negatively charged balloon is brought close to a wall, the positive charges in the wall are

If a storm cloud is negatively charged on bottom, and equally as positively charged on top

If the same storm cloud passes over a patch of flat ground, the ground becomes

Gravitational force depends on mass. What comparable quantity governs the electrical force?

Is an electron in a Uranium atom the same as an electron in a Hydrogen atom?

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