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WorksheetsCA #4 Review
Total questions: 52
Worksheet time: 1hrs 2mins
How does distance change the effort when using an inclined plane?
as distance increases, effort decreases
as distance decreases, effort decreases
as distance increases, effort increases
nothing, they both stay the same
A family is moving from Pennsylvania to Connecticut. The movers are using a ramp to load boxes onto the truck. The advantage of the ramp is to reduce the—
force needed to raise the boxes by increasing the distance the box is moved
time needed to raise the boxes by reducing the distance the box is moved
work needed to raise the boxes by increasing the distance the box is moved
effort needed to raise the boxes by reducing the distance the box is moved
How do you find the net force of this image.
Add up all the arrows
Add a green arrow and the orange arrow.
Subtract all the arrows.
Add the green arrows and subtract the orange arrow.
Is the Net Force balanced or Unbalanced?
Balanced
Unbalanced
If an object is moving, what does it have to be doing to still be considered a balanced force?
moving at a constant speed
be unbalanced
stop moving
slow down
What is the net force in this example?
200 N
125 N
50 N
75 N
This is a velocity-time graph. What is the object doing in segment A?
Speeding up
Slowing down
Constant Velocity
Not moving
What is this line of this graph showing?
moving away from starting point at a constant speed
moving back towards the starting point at a constant speed
acceleration (getting faster)
deceleration (getting slower)
During which segment is the object decreasing speed?
X
Y
Z
During segment Y, the object is -
Increasing speed
Decreasing speed
Stationary
Moving at constant speed
What is the object doing?
Accelerating
Not moving
Moving backwards
Having constant velocity
The hand generator works by turning the handle which lights up the bulb. What energy transformation occurs as the handle is turned?
Thermal to electrical
Electrical to mechanical
Mechanical to electrical to light
Light to electrical
What is the energy transformation that occurs in an electric pencil sharpener?
mechanical energy to electrical energy
electrical energy to mechanical energy
radiant energy to sound energy
chemical energy to mechanical energy
What type of energy transformation occurs, when a hawk eats a mouse and then uses the energy from the mouse to fly?
mechanical energy to chemical energy
thermal energy to mechanical energy
chemical energy to mechanical energy
mechanical energy to thermal energy
Which object shows an energy transformation from electrical to mechanical?
Which of the following is a disadvantage of using solar energy?
releases carbon dioxide into the atmosphere
reduces the need for electricity from fossil fuels
produces energy only when the sun is shining
is an unclean source of energy
The picture showing the energy conversion
Light → chemical
is:
The picture showing the energy conversion
Chemical → light & heat
is:
The picture showing the energy conversion
Chemical → heat
is:
