Unit 8 Test Review - Physical Science Energy

Energy of motion is which type of energy?

• Potential
• Kinetic
• Sound
• Gravitational

Work is:

• A transfer of energy by a force to move and object
• Something you get paid for
• Something you take home
• Makes you sweat

What is kinetic energy?

• energy of work
• energy of motion
• energy of gravity
• energy of power

What two factors affect an object's kinetic energy?

• area and volume

• mass and weight

• weight and height

• mass and speed

If all objects are moving as the exact same speed, which would have the greatest kinetic energy?

• tennis ball

• football

• notebook

• box of 20 textbooks

A golf pro swings his driver which weighs 0.75Kg at a velocity of 60 m/s. Calculate the kinetic energy of the club.

• 2700 J
• 16.9 J
• 1350 J
• 45 J

You serve a volley ball with a mass of 2.1 kg. The ball leaves your hand with a speed of 30m/s. The ball has ____ kinetic energy. Calculate it.

• 1890 J
• 3780 J
• 945 J
• 31.5 J

What is the potential energy (PE) of a 1 kilogram book that is 1 meter above the ground?

• 9.8 Joules

• 1.0 Joule

• 0.10 Joule

• 11.8 m/s²

A 3 kg bowling ball is lifted 1.5 m off the ground. What is its PE?

• 4.5 J

• 2 J

• 44.1 J

• 0.5 J

Which of these is a measurement of power?

• 100 joules
• 100 watts
• 100 meters per second
• 100 hertz