Work and Power

The product of the net force on an object and distance through which the object is moved

• Work
• Power
• Energy
• Acceleration

Work is done when a weightlifter holds a barbell still above his head.

• True
• False

Force is measured using which type of unit?

• Meters
• Kilograms
• Newtons
• Joules

You push against the back of your friends car that is stuck. You push and be become very tired. Did you do work?

• Yes, work was done
• No, work wasn't done

The amount of work done divided by the time interval during which the work is done is called...

• Work
• Power
• Energy
• Force

Energy that is stored and held in readiness is called...

• Elastic Energy
• Kinetic Energy
• Potential Energy
• Mechanical Energy

This type of energy requires that the object is in motion...

• Elastic Potential Energy
• Chemical Energy
• Gravitational Potential Energy
• Kinetic Energy

A large stone raised to the top of a hill is known to have this type of energy...

• Elastic Potential Energy
• Chemical Energy
• Kinetic Energy
• Gravitational Potential Energy

Force is measured using which type of unit?

• Meters
• Kilograms
• Newtons
• Joules

Person A is twice the weight of Person B and climb the same hill. If person A gets the top in half the time then...

• Person A is twice as powerful
• Person B is twice as powerful
• Person A is four times as powerful
• Person B is four times as powerful