Physics Final

What is current measured in?

• Ω (Ohms)

• V (Volts)

• A (Amps)

• W (Watts)

What types of charges attract?

• Positive and Positive

• Positive and Neutral

• Negative and Neutral

• Positive and Negative

During a lab a balloon was rubbed with a wooly fabric. This is an example of which type of charging?

• conduction

• friction

• induction

An object becomes charged when the atoms in the object gain or lose

• electrons

• protons

• neutrons

• all of the above

Static electricity is 

• The balance of electrical charge on an object

• The unequal balance of electrical charges on an object

• The discharge of electrical charge

• The build up of protons in the nucleus of an atom 

Charging by ____ occurs when electrons are transferred from one object to another by direct contact.

• reduction

• induction

• conduction

• friction

Warm air rises and the cool air sinks demonstrates this type of heat transfer. 

• conduction

• convection

• radiation

• Insolation 

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

If an object is moving at twice its original velocity, its Kinetic energy is now

• twice the magnitude

• equal in magnitude

• half the magnitude

• quadruple (four times) the magnitude

Tags

NGSS.MS-PS3-1

an Electromagnet increases in strength when

• the current increase

• the number of loops increases

• the iron core is more conductive

• all of the above

An object that experiences balanced forces is...

• not moving

• In Free-fall

• In equilibrium

• not magnetic