Ch. 8 Energy and Work Fundamentals

Electricity is:

• Flowing electrons

• Still electrons

• Voltage x Wattage

• Amps x Watts

Resistance is measured in:

• Volts

• Amps

• Ohms

• Watts

Current is measured in:

• Ohms
• Voltage
• Amperes
• Watts

What is the unit of electric power?

• ampere
• volt
• watt
• ohm

What equation links voltage, current and resistance

• V = IR

• V = CR

• V = I/R

• V = R/I

• V = C/R

A 1.5 volt battery is connected to a 10 ohm resistor. What current passes through the resistor? (Hint: think of Ohm's Law)

• 6.7 A

• 150 A

• 0.15 A

• 15 A

What is the unit for work?

• Joules

• Newton

• Watts

Which of the given pictures shows that work can not done?

• 
• 
• 

What are the factors affect gravitational potential energy?

• Mass and Velocity

• Mass, Acceleration due to gravity, and Height

• Mass, Acceleration due to gravity and Time

Which of the following statements show kinetic energy?

• The battery of a lit flashlight

• A golf ball placed at the edge of the hole

• A river flowing down a hill