Work and Energy

_______________ is done when an object moves a distance due to a _________ acting upon it

• Work, Force

• Energy, Work

• Work, Energy

• Work, Power

Work = Force x _____________________

• Mass

• Distance

• Energy

• Power

The SI Unit for work is the ______________ represented by the letter _____.

• Watt, W

• Newton, N

• Gram, g

• Joule, J

_______________________ is the rate at which work is done

• Energy

• Velocity

• Acceleration

• Power

When calculating power, the formula used is _____________ divided by _______________.

• Energy, Time

• Work, Time

• Power, Time

• Speed, Time

The SI unit for power is the _______________, represented by the letter ______

• Watt, W

• Gram, g

• Joule, J

• Newton, N

According to the scientific definition of work, pushing on a rock accomplishes no work unless there is

• An applied force greater than its weight

• A net force greater than zero

• An opposing force

• A movement in the same direction as the force

Which quantity has the greatest influence on the amount of kinetic energy that a large truck has while moving down the highway?

• Mass

• Velocity

• Weight

• Size

The law of conservation of mass states that

• Energy must be conserved and you are breaking the law if you waste it

• The supply of energy is limited so we must conserve it

• Energy cannot be used faster than it is created

• Energy cannot be created or destroyed

Energy is the

• Amount of force on an object

• Ability to do work

• The rate at which power is used

• None of the above