PCTI Work & 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

Tags

NGSS.HS-PS2-1

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

Tags

NGSS.HS-PS2-1

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

• Work
• Power
• Energy
• Force

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 

Tags

NGSS.HS-PS2-1

If a new fork lift can do the four times the amount of work in the same amount of time of an old forklift, then the new forklift is...

• Twice as powerful
• Four time as powerful
• Sixteen times the power
• of equal power of the old forklift

Work requires force and _______.

• distance
• time
• position

What is the unit for work?

• newton
• joule
• meters

This is the SI unit for power.

• m/s2

• Joules

• Watts