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WorksheetsNet Force (resultant force) QUIZ
Total questions: 39
Worksheet time: 36mins
What kind of forces does this picture show?
Balanced
Unbalanced
Static
Sliding
The couch is not moving so ...
the push force equals the friction force
the forces are balanced
all of these
These diagrams show how we reduce & how we increase...
Air resistance
Gravity
Static Friction
Sliding Friction
This drawing is an example of ...
Balanced forces
Unbalanced forces
Sliding Friction
Rolling friction
When we stopped the fast moving skateboard
force of the moving water jug was greater than the friction force
force of the moving water jug was less than the friction force
When the hoop is lifted the ball follows path
A
B
C
D
A fair test is when
you change 2 things
you change the results
you change only 1 thing in an experiment
you change your clothes
The Net force is
1 down
1 up
11 up
11 down
If the ball was already rolling away from the boy, the kick results in _____________ of the ball.
change in shape
change in speed
change in direction
This is an example of
unbalanced forces
a net force down
balanced forces
If this man had a larger parachute (more surface area)
he would fall faster
he would fall slower
gravity
speed
Unbalanced forces result in
the object not moving (zero net force)
the the object moving (a net force)
The force(s) on the book would be best shown by
one arrow down
2 equal & opposite arrows
a large arrow down & a small arrow up
a large arrow up & a small arrow down
The forces on the ping pong ball above the hair dryer are
air forcing it up & gravity pushing down equally
air forcing it up & gravity pushing down equally with equal force from the sides
air forcing it up more than gravity pushing down
This diagram shows
balanced Push & Pull forces
unbalanced, 2 pull & 1 push force
net force 1 from 2 push & 1 pull
net force of zero
What is the one force that is greater when pulling the block up the steeper ramp?
gravity
push & pull
gravity & friction
friction
What are the 3 forces keeping the ping pong ball in place?
Vacuum force & straw force equal to gravity
Vacuum force greater than gravity & air resistance
Gravity greater than vacuum force & straw force
For the stool to be sliding
the pull must be greater than the friction force
the friction must be greater than the pull force
the pull force must be equal to the friction force
The third line reading is
1.3
13
0.3
The force meter is reading...
10 kg
5.5 N
10 N
1 kg
The graph shows that
increased number of chairs (weight) requires more force to overcome friction
increasing the number of newtons resuts in more weight
3 chairs will always require 40 newtons force to move
The forcemeter has an adjustment screw to make it
read zero when empty
read exact number when weighing things
change the reading from newtons to kg
A balanced force is only an object that is not moving.
True
False
__________ is the sum of all forces acting on an object.
velocity
gravity
net force
distance
When the vectors (arrows) point away what function do you use?
Dividing
Multiplying
Subtracting
Adding
Which force also produces heat?
Gravity
Friction
When you cannot move something you are pushing
no Work is done (no energy transferred)
you get really tired so Work is done (enrgy transferred)
You Work out another way to move it
if you travelled to a planet with twice the gravity of Earth
Your weight would double but your mass would be the same
Your mass would double but your weight would be the same
What effecdt is described by the graph
The more you fold a piece of paper, the less air friction to slow it down
The more you fold a paper the heavier it gets
The air friction gets bigger as surface area gets smaller
What shoe had the largest friction & smallest friction when pulled with a forcemeter?
Hiking boot & Ballet shoe
Ballet shoe & Trainer
Indoor shoe & slipper
The graph shows how far a block slides down a ramp with different surfaces
The plastic wrap has the most friction
The sandpaper has the least friction
The plastic wrap has the least friction
There is no difference in friction
After the skater has stopped moving because of friction
all his moving energy has turned into heat (thermal energy)
there has been no change in energy
