Pact Electrical

Which facts describe properties of static electricity?

• I and III

• I and IV

• II and III

• II and IV

Which change could Roger make to the wet cell to produce electricity?

• Replace one of the zinc electrodes with copper

• Increase the sulphuric acid concentration to 7.5%

• Replace both the zinc electrodes with copper

• Decrease the sulphuric acid concentration to 2.5%

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

NGSS.MS-PS1-2

Which of the following sequences shows the transfer of energy initiated by the flow of water in a hydroelectric power plant?

• Mechanical-gravitational-electrical

• Electrical-gravitational-mechanical

• Gravitational-electrical-mechanical

• Gravitational-mechanical-electrical

Tags

NGSS.HS-PS3-3

Which of the following sets of components in a series circuit would cause the light bulbs to shine the brightest

• Resistance - resistor present, load - 2 bulbs

• Resistance - resistor present, load - 3 bulbs

• Resistance - no resistor present, load - 2 bulbs

• Resistance - no resistor present, load - 3 bulbs

Tags

NGSS.MS-PS2-2

Which component of the traffic model is most closely related to switches found in circuits?

• I

• II

• III

• IV

Tags

NGSS.MS-PS2-3

When listed in order from most efficient device to the least efficient device, the order is

• 4, 1, 3, 2

• 4, 1, 2, 3

• 4, 3, 2, 1

• 3, 1, 4, 2

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

NGSS.MS-PS3-4

Which of the following sources of energy is classified as renewable?

• Natural gas

• Biomass

• Coal

• Oil

To the nearest tenth of a watt, how much power does the bulb consume (P=IV)?

• 0.5 W

• 2.0 W

• 13.4 W

• 39.6 W

A disadvantage of hydroelectric power generation is that it

• emits pollutants into the atmosphere

• disrupts the natural flow of waterways

• provides an unreliable method for producing energy

• produces hazardous waste the requires long-term storage

Tags

NGSS.MS-ETS1-1

NGSS.MS-ESS3-4

Which motor component functions as an electromagnet?

• Permanent magnet

• Power source

• Commutator

• Armature

Tags

NGSS.MS-PS2-3