6.1.12 DOK

What two conditions have to be satisfied for a force to do work on an object? Pg 154

• The applied force must make the object move and the movement must be in the opposite direction as applied

• The object must move up or down and force has to be applied

• The applied force must make the object move & the movement must be in the same direction as the applied force

• The only condition that has to be applied is that the force must make the object move

What is the definition of work? Pg 154

• The energy transferred when a force makes an object move

• When an object moves

• What happens when you make something move without energy

When you work on an object you ______ ___ ______. page 155

• Push it forward

• Make it move

• Decrease it's energy

• Increase it's energy

What is the equation for work? page 156

• W=Fd

• F=dW

• d=FW

• W=F+d

What is power? page 157

• How quickly you can move something

• How fast you can push something up a ramp

• The amount of work done in one second.

If you push a shopping cart at a quicker rate than your mom are you doing more or less work? page 157

• More

• Less

• Neither, you're just using more power

What is the unit of measurement for power? Pg 158

• Joules

• Watts

• Newtons

What is the equation for power? Pg 158

• Power (in watts)=Work (in joules) / time (in seconds)

• Power (in joules) = Work (in watts) / time (in seconds

When work is transferred, power can be calculated from the equation ________. page 159

• P=E/t

• P=t/E

• E=t/P

• E=P/t

What type of energy is being transferred when someone's muscles do work? Pg 155

• Thermal energy

• Chemical energy

• Gravitational energy