Semester Exam Review- Principles of Technology

Like charges _______________.

• repel
• attract

Opposite charges ______________.

• repel
• attract

Which of the following metals is highly magnetic?

• gold
• iron
• silver

Do conductors or insulators allow electricity to flow more easily?

• conductors
• insulators

What is the unit for mass?

• kilogram (kg)
• meter (m)
• Newton (N)
• Joule (J)

What is the unit for distance?

• kilogram (kg)
• meter (m)
• Newton (N)
• Joule (J)

What is the unit for force?

• kilogram (kg)
• meter (m)
• Newton (N)
• Joule (J)

What is the unit for energy?

• kilogram (kg)
• meter (m)
• Newton (N)
• Joule (J)

What is the formula for kinetic energy?

• mass x acceleration
• velocity / time
• ½(mass) x (velocity)2
• (mass) x (acceleration of gravity) x (height)

What is the formula for gravitational potential energy?

• mass x acceleration
• velocity / time
• ½(mass) x (velocity)2
• (mass) x (acceleration of gravity) x (height)