QUIZ 1::GRADE 10 GIRLS::STATIC ELECTRICITY::TERM 3::2020

If two charges repel each other, the two charges must be

• Positive and neutra
• Positive and negative
• positive and neutral
• negative and negative

Tags

NGSS.HS-PS2-4

If you rub a glass rod with a piece of silk, the rod becomes positively charged. This means that

• friction destroyed electrons in the rod.
• the silk has become negatively charged.
• protons have moved to the rod.
• glass attracts more protons.

Tags

NGSS.HS-PS2-4

NGSS.HS-PS3-5

If you bring a charged object near an electrically neutral surface without allowing the object to touch the surface, the charges in the surface are rearranged by

• friction.
• convection.
• induction.
• conduction.

Tags

NGSS.HS-PS2-4

NGSS.HS-PS3-5

Objects that have opposite charges

• are attracted to each other, and the force between the objects pulls them together.
• are attracted to each other, and the force between the objects pushes them apart.
• are repelled by each other, and the force between the objects pulls them together.
• are repelled by each other, and the force between the objects pushes them apart.  

Tags

NGSS.HS-PS2-4

A region around a charged particle that can exert a force on another charged particle is called an

• electric pulse.
• electric charge.
• electric force.
• electric field.

Tags

NGSS.HS-PS2-4

NGSS.HS-PS3-5

Electric field lines are drawn

• In a radial direction, from negative to positive.
• In a radial direction, from positive to negative.
• In a tangent direction, from positive to negative.
• In a tangent direction, from negative to positive.

Tags

NGSS.HS-PS2-4

A plastic rod and a piece of cloth are both uncharged. A student rubs the plastic rod with the cloth. The plastic rod becomes negatively charged.

Which row of the table is correct for the charge on the cloth?

• POSITIVE AND BIGGER CHARGE

• POSITIVE AND EQUAL CHARGE

• NEUTRAL CHARGE

• NEGATIVE AND SMALLER CHARGE

The student holds the plastic rod near to a stream of water coming from a tap. The stream of water bends towards the plastic rod.

Which shows the correct arrangement of charges in the stream of water?

• FULL NEGATIVE CHARGE IN WATER

• FULL POSITIVE CHARGE IN WATER

• NEAR TO ROD POSITIVE CHARGE COMES IN WATER

• NEAR TO ROD NEGATIVE CHARGE COMES IN WATER

A torch has a battery and a bulb. The current in its circuit is 0.08 A. Calculate the amount of charge passing a point in this circuit in 2 minutes.

• 9.9 C

• 9.3 C

• 9.6 C

• 0.16 C

There is a current of 1.2 mA in a circuit. Calculate the charge transferred by this current in 40 s. State the unit

• 0.048 C

• 0.068 C

• 48 C

• 0.068 A