WorksheetsForces
Total questions: 25
Worksheet time: 25mins
A kid applies a force of 70 N to a ball over 1.1 meters. How much work did he do on the ball?
77 J
7.7 J
0.7 J
770 J
A weightlifter lifts two 300 newton weights 1.5 meters off the ground. How much work has he done?
600 J
660 J
900 J
1200 J
When a force causes an object to move in the direction of the force.
(a)
The formula for work.
W=F*d
W=F/d
F=W*d
W=F+d
Label the forces acting in this image.
applied force
gravity
normal force
friction
Label the forces acting in this picture.
applied force
tension
normal
gravity
Label the forces acting in this picture.
air resistance
applied
gravity
The concept that if a machine makes work easier for you by multiplying the force, you must apply the force input over a longer distance.
the force-distance tradeoff
friction
the Rube-Goldberg Effect
the law of thermodynamics
the multiplication principle
The name for the fixed point on a lever.
(a)
The type of lever in which the fulcrum and the input forces are on the end and the load is in the middle.
2nd class
1st class
3rd class
fixed
movable
The type of lever in which the fulcrum and the output force are on the ends and the input force is in the middle.
3rd class
1st class
end class
block and tackle
input class
The type of lever in which the fulcrum is in the middle and the input and output forces are on the ends.
1st class
2nd class
3rd class
center class
see saw class
Which one is an example of a 1st class lever?
A) Fulcrum in the middle
B) Wheelbarrow
C) Seesaw
D) Scissors
Which one is an example of a 2nd class lever?
wheelbarrow
scale
fixed pulley
dumbbells
Identify the type of pulley
fixed
moveable
block and tackle or pulley system
Identify the type of pulley
Fixed
Moveable
Block and Tackle or pulley system
Identify the type of pulley
Block and Tackle or pulley system
Fixed
Moveable
How much work is being done with 200 N of force over 426 meters?
85,200 J
45,620 J
90,480 J
62,329 J
Which of the following is the best example of work being done.
doing homework
lifting a box
pushing a stationary box
holding a box
You move an 8-newton weight five meters in 4 seconds. How much power have you generated?
160 watts
10 watts
6.4 watts
17 watts
If 150 Joules of work is needed to move a box 10 meters, what force was used?
1500 N
15 N
1.5 N
150 N
Using a lever, Joe is able to lift a 10,000 N car off of the ground with a force of 1000 N. What is the mechanical advantage of the lever (MA=Output Force/Input Force)?
1
10
100
1000
if a load of a lever is 100 newtons and the force you apply is 20 newtons, what is your mechanical advantage?
120
5
2000
80
What is the force that opposes the motion of an object through a fluid?
Gravity
Friction
Drag
Tension
Which of the following is an example of a non-contact force?
Friction
Tension
Magnetic
Normal
