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WorksheetsQuizizz 23
Total questions: 40
Worksheet time: 24mins
What do the arrows or vectors represent?
Forces acting on the object
All the acceleration acting on the object
All the ways an object can move
Whenever an object is in motion, there is always a force opposing the motion:
inertia
momentum
friction
applied force
What is the net force of this diagram?
17 N, right
17 N, left
23 N, right
12 N, up
The down-arrow in this diagram most likely represents:
gravity
normal
a push or pull
friction
When two forces act in the same direction, how would you calculate the net force?
Subtract the forces
Balance the forces
Add the forces
Divide the forces
How do you calculate the net force when forces are going in the opposite direction?
Add the forces
Divide the forces
Find a fraction of the forces
Subtract the forces
This is defined as forces that are equal in magnitude.
Unbalanced Forces
Forces
Balanced Forces
Net force
A rightward force is applied to a dresser to accelerate it to the right across the bedroom floor.
What is an interaction between at least two objects that are physically touching?
collision
contact force
crash
In science, when one object runs into another we call it a
force
collision
pushing
What is the unit for Force?
grams
g/ml
Newtons
How does air resistance affect the motion of objects?
speeds it up
slows it down
makes it heavier
it doesn't
What is transferred in a collision that causes an object to change motion?
force
energy
happiness
A moving car collides with a parked car. Which car has kinetic energy before the collision?
what energy?
moving car
parked car
kinetic energy
How does increasing kinetic energy affect peak force?
It has no effect on peak force
It decreases peak force
It increases peak force
It causes peak force to reach its breaking point
Which of the following would cause a system to reach higher peak force?
Increasing the deformation of the objects
Increasing the breaking point of the objects
Decreasing the mass of the objects
Increasing the speed of the objects
What is kinetic energy?
The energy of motion
The energy that objects have if they are not moving.
How much force something has
Stored energy
Energy in a system can be transferred to other objects within that system.
True
False
What is peak force?
The amount of force exerted by the object with the most KE in the system
The amount of force needed for an axon to reach its breaking point
The maximum amount of force exerted by an object
The amount of force exerted by the object with the largest mass
What is a force?
A push or pull on an object resulting
The amount of Newton's an object has
How much motion an object has
The maximum amount of energy exerted by an object
Which of the following would have stored or potential energy?
Waves crashing against a beach
A dog laying on the ground chewing a bone
A car driving down the street
A soda can that has been shaken and not yet opened.
_____ is the result of energy transfer from friction
Heat
Air resistance
Kinetic Energy
Deformation
Air resistance causes objects to slow down.
True
False
a line that is very close to most of the data points in a scatter plot
independent variable
air resistance
line of best fit
contact force
a diagram showing all the forces acting on an object
line of best fit
independent variable
elastic limit
free body diagram
change in shape (broken, bent, cracked, smushed, dented)
neuron
damage
collision
peak force
the most a solid can be deformed and still bounce back to its original shape
contact force
elastic limit
breaking point
kinetic energy
variable to observe the effects caused by change in the independent variable (responds/results/y-axis)
independent variable
contact force
dependent variable
line of best fit
the point at which a solid breaks
breaking point
elastic limit
peak force
kinetic energy
variable that changes each time you test (manipulating/x-axis)
line of best fit
air resistance
independent variable
dependent variable
mass and kinetic energy are __________ related
exponentially
proportionally
speed and kinetic energy is _________ related
exponentially
proportionally
the more kinetic energy an object has, the more _______ it can do
racing
damage
falling
during a collision, the forces applied on objects on each other are ____________, ___ __________
equal, and equal
larger, and smaller
equal, but opposite
when objects collide ...
deformation occurs
energy is transferred
forces are applied to each object
all of the choices are correct
If a brown and a green spring scale (two different "strength" spring scales) were used to push against each other, which one would apply more force?
the spring scale with less "springyness" (green or the one that only goes to 5 N) will apply MORE force
the spring scale with less "springyness" (green or the one that only goes to 5 N) will apply LESS force
both will apply EQUAL forces
In this picture, one spring scale is pushing into the other. Are those forces the same strength or different?
the forces are the same on each object
the one pushing into the other is applying more force
the one being pushed is applying more force
Are the forces of the two different spring scales that are pushing or pulling, in the same direction or opposite directions?
the forces are in opposite directions
the forces are in the same direction
If spring scale A pulls on B with 3 Newtons, what would the scale say on B?
0 N
3 N
6 N
A line of Best Fit (Trend line) shows
the highest and lowest points in the data collected
the average pattern of all the data collected
