Work and Power
2 years ago
hrdedie
Save
Edit
Host a game
Live GameLive
Homework
Solo Practice
Practice
10 QuestionsShow answers
  • Question 1
    45 seconds
    Q. Which of the following is a true statement about work?
    answer choices
    It measures how quickly an object accelerates 
    It measures how much effort is applied over a certain distance
    It measures the change in an object's rate of speed
    It measures how much time it takes to move a massive object
  • Question 2
    45 seconds
    Q. What does one newton exerted over a distance of one meter equal?
    answer choices
    One watt
    One hertz
    One volt 
    One joule 
  • Question 3
    60 seconds
    Q. A kid applies a force of 70 N to a ball over 1.1 meters. How much work did he do on the ball? 
    answer choices
    77 J
    7.7 J 
    0.7 J 
    770 J 
  • Question 4
    60 seconds
    Q. A weightlifter lifts two 300 newton weights 1.5 meters off the ground. How much work has he done?
    answer choices
    600 J 
    660 J
    900 J 
    1200 J 
  • Question 5
    45 seconds
    Q. Simple machines make work easier by increasing what?
    answer choices
    The distance over which work is done 
    The force needed to do work 
    The time required to do work
    The acceleration of a massive object 
  • Question 6
    30 seconds
    Q. Which of these is a measure of force?
    answer choices
    100 newtons
    100 meters per second
    100 joules
    100 watts
  • Question 7
    45 seconds
    Q. You move a 12-newton box up a 6-meter ramp. In order to find out how much power you created, what would you need to know?
    answer choices
    The mass of the box
    The slope of the ramp 
    The direction the box moved
    How long the task took
  • Question 8
    60 seconds
    Q. You do 90 joules of work in 30 seconds. How much power have you generated?
    answer choices
    30 watts
    3 watts
    120 watts
    270 watts
  • Question 9
    60 seconds
    Q. You move an 8-newton weight five meters in 4 seconds. How much power have you generated?
    answer choices
    160 watts
    10 watts
    6.4 watts
    17 watts
  • Question 10
    120 seconds
    Q. Which of the following would produce the most power?
    answer choices
    A mass of 10 kilograms lifted 10 meters in 10 seconds 
    A mass of 10 kilograms lifted 10 meters in 5 seconds
    A mass of 5 kilograms lifted 10 meters in 5 seconds
    A mass of 5 kilograms lifted 5 meters in 10 seconds
Report Quiz
Join a game