Ch.4 Energy Quiz

The kinetic energy of an object increases as its __________ increases

• specific heat
• velocity
• gravitational energy

Increasing the speed of an object _________ its potential energy

• does not affect
• increases
• decreases

The SI unit for energy is the ____________.

• calorie
• joule
• meter per second

What is the formula for kinetic energy?

• mass x 9.8 x height
• weight x height
• 1/2mass x velocity squared

What is the formula for gravitational potential energy?

• 1/2mass x 1/2 height
• mass x 9.8 x height
• 1/2 height x weight

Which of the following devices does not make use of electrical energy?

• upright piano
• radio
• toaster

A bus engine transfers chemical potential energy into _________ so that the bus moves. 

• thermal energy
• electrical energy
• kinetic energy

In a nuclear fusion reaction, mass is transformed into ____________.

• matter
• nuclei
• energy

According to the law of conservation of energy, the total amount of energy in the universe ___________.

• remains constant
• changes constantly
• decreases

If an object has energy, this means that the object has the ability to cause ___________.

• change
• work
• energy