Science Forces & Work / Simple Machines

Created by ftbrady

1. to be considered work, you need a ____ ____ through which a force acts
2. formula for work
3. what is the unit for work
4. a machine is
5. two basic types of SM of which all other SM are variations of
6. what do most SM do
7. do SM make less work?
8. SM can actually make more work due to
9. "machines make work easier" force vs. distance
10. a force applied by a machine to an object is the
11. a force applied to a machine by a person is the
12. what are the exceptions to SM make work easier and an advantage of each machine
13. Is work done when someone is sitting on a cushion on the floor
14. a baseball is hit into the bleachers
15. Mary holds a doorstop in one place to show you an example of a wedge
16. a little girl is pushed on a swing
17. examples of inclined planes
18. examples of levers
19. an inclined plane decreases the ____ needed to lift an object by ____ the distance that force is applied
20. less force=
21. more force =
22. inclined planes can increase the amount of work done due to
23. if the force required to lift a barrel into the back of a truck was 124 Newtonss without a SM, what would the force required to get the barrel into the back of the truck using a ramp
24. if it takes 45343 joules of work to lift a barrel into the back of a truck without using a SM, how much work would be required to get the barrel into the back of the truck using a ramp

a. more distance
b. no work
c. SM make work easier to do by decreasing the force required by increasing the distance over which the work is done
d. no, SM make work easier they do not decrease the amount of work
e. pulley and wheel and axle
f. friction
g. force and distance
h. wedge and screw
i. single fixed pulley- changes the direction of a force; 3rd class lever-gives us increased speed
j. joules
k. force; increasing
l. effort force
m. no work
n. any device that makes doing work easier
o. more than 45343 Joules
p. less than 124 Newtons
q. less distance
r. inclined planes and levers
s. friction
t. work is done
u. resistance force
v. make work easier by reducing the force needed
w. work is done
x. work=force X distance

Answer Key
Hide Answer Key

Science Forces & Work / Simple Machines (Answer Key)

Created by ftbrady

g 1. to be considered work, you need a ____ ____ through which a force acts
x 2. formula for work
j 3. what is the unit for work
n 4. a machine is
r 5. two basic types of SM of which all other SM are variations of
v 6. what do most SM do
d 7. do SM make less work?
s 8. SM can actually make more work due to
c 9. "machines make work easier" force vs. distance
u 10. a force applied by a machine to an object is the
l 11. a force applied to a machine by a person is the
i 12. what are the exceptions to SM make work easier and an advantage of each machine
m 13. Is work done when someone is sitting on a cushion on the floor
t 14. a baseball is hit into the bleachers
b 15. Mary holds a doorstop in one place to show you an example of a wedge
w 16. a little girl is pushed on a swing
h 17. examples of inclined planes
e 18. examples of levers
k 19. an inclined plane decreases the ____ needed to lift an object by ____ the distance that force is applied
a 20. less force=
q 21. more force =
f 22. inclined planes can increase the amount of work done due to
p 23. if the force required to lift a barrel into the back of a truck was 124 Newtonss without a SM, what would the force required to get the barrel into the back of the truck using a ramp
o 24. if it takes 45343 joules of work to lift a barrel into the back of a truck without using a SM, how much work would be required to get the barrel into the back of the truck using a ramp

a. more distance
b. no work
c. SM make work easier to do by decreasing the force required by increasing the distance over which the work is done
d. no, SM make work easier they do not decrease the amount of work
e. pulley and wheel and axle
f. friction
g. force and distance
h. wedge and screw
i. single fixed pulley- changes the direction of a force; 3rd class lever-gives us increased speed
j. joules
k. force; increasing
l. effort force
m. no work
n. any device that makes doing work easier
o. more than 45343 Joules
p. less than 124 Newtons
q. less distance
r. inclined planes and levers
s. friction
t. work is done
u. resistance force
v. make work easier by reducing the force needed
w. work is done
x. work=force X distance

When you're ready to print, just click this button: Make Print-Friendly