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WorksheetsScience Test 11/8
Total questions: 45
Worksheet time: 9hrs 0mins
A polar bear slides down an ice-covered hill. As it slides, it decelerates. Finally, it stops. What force acts on an object to decelerate or stop its motion?
Speed
Friction
Gravity
Direction
Is this a balanced or unbalanced force?
Balanced
Unbalanced
None
Both
Calculate the net force on the object shown in the image.
20N
35N
5N
25N
What is the net force?
11 N to the left
11 N to the right
3 N to the left
3 N to the right
The energy due to motion is ____________ energy.
Potential
Energy
Kinetic
Friction
__________ is stored energy.
Potential
Kinetic
None of the above
All of the above
Gravitational potential energy depends on the ________ and ________ of the object.
Height and mass
Friction and motion
Mass and motion
Height and friction
For every action, there is an equal and opposite reaction.
First
Law
of Newton
Second
Law
of Newton
Third
Law
of Newton
What is Newton's First Law?
The more force applied to an object, the faster it will accelerate.
An object in motion will remain in motion and an object at rest will remain at rest unless acted upon by an external force.
For every action, there is an equal and opposite reaction.
What is the name of the change in velocity?
Velocity
Force
Direction
Acceleration
The tendency of an object to resist changes in its state of motion is ...
inertia
force
motion
friction
What type of energy is shown in the image?
Light
Gravitational
Potential
Kinetic
The energy from the sun is known as.........
hydroelectric energy
geothermal energy
radiant energy
wind energy
Moving electrons is an example of what form of energy?
Thermal energy
Electrical energy
Chemical energy
Mechanical energy
Mechanical energy is the sum of which two energies?
Thermal and Radiant
Chemical and Electrical
Potential and Kinetic
Nuclear and Sound
What type of energy is stored in the bonds between atoms?
Electrical energy
Thermal energy
Kinetic energy
Chemical energy
Energy released when atoms split (fission) or join (fusion).
Mechanical
Nuclear
Thermal
Sound
The ability to do work or cause change is known as what?
(a)
Which of the following energy transformations occurs when a lamp plugged into an outlet works correctly?
Chemical to Light
Electrical to Chemical
Electrical to Light
Which object shows an energy transformation from electrical to mechanical?
Name 8 forms of energy that we have discussed in Coach Hilliard's class?
(a)
What type of energy allows you to see the images and texts on your cell phone screen?
Sound
Thermal
Magnetism
Light
Kinetic energy depends on_________ and _________.
velocity and mass
velocity and height
height and mass
energy and height
What type of energy do we get from the food we eat?
light
thermal
chemical
sound
More than one form of energy can be present at the same time.
True
False
Vibrations produce _______ energy.
chemical
sound
potential
light
How much kinetic energy does an object in motion have if its mass is 100 kg and it moves at a speed of 5 meters per second?
(a)
_________ energy is the energy stored in the nucleus of an atom, also known as atomic energy.
Electrical
Radiant
Nuclear
Chemical
_________ energy is the energy due to the movement of the particles that make up an object, also known as (heat) energy.
Mechanical
Radiant
Thermal
Sound
If the marble had a mass of 0.3 kg and the hill had a height of 2.3 m, how much potential energy did it have at the top of the ramp?
2.36 J
0.235 J
6.762 J
5.25 J
If the 1.2 kg basketball rolls at 3 m/s, what is its kinetic energy?
(a)
Ty lifts a set of weights of 1250 kg a vertical distance of 2 m in a weightlifting contest. What potential energy do the weights now possess?
12,789 Joules
24,500 Joules
4,500 Joules
Alice kicks a soccer ball with a mass of 2.1 kg. The ball leaves the ground moving at 30 meters per second. What is the kinetic energy of the soccer ball?
(a)
Energy carried by light and other types of electromagnetic radiation.
Mechanical
Electrical
Radiant
Thermal
A change from one form of energy to another is known as what?
Conservation of Energy
Energy Transformation
Gravitational Potential Energy
Kinetic Energy
Which activities from the list are examples of the use of mechanical energy? (Bonus Question)
Activities 2, 4, 5
Activities 1 and 2
Activities 3, 5, 6
Activities 1, 4, 6
Which of these is NOT an example of the bicycle using mechanical energy?
The pedals, gears, and chain help turn the wheels.
The wheels turn when the bicycle moves.
The front wheel guides the bicycle while it moves.
The reflector allows the bicycle to be seen at night.
Water flows through turbines in dams like the one shown below. The flowing water turns the turbines. What type of energy is used to turn the turbines in this type of dam?
Radiant Energy
Mechanical Energy
Thermal Energy
Sound Energy
The roller coaster cart has the greatest gravitational potential energy at position.
W
X
Y
Z
What are the 3 types of heat transfer? (Bonus Question)
(a)
As a pendulum moves from its highest position to the lowest, what happens to its kinetic and potential energy? (Bonus Question)
Both potential energy and kinetic energy decrease
Potential energy decreases while kinetic energy increases
Kinetic energy decreases while potential energy increases
Both potential energy and kinetic energy increase
A cheetah can run briefly with a speed of 31.0 m/s. Suppose a cheetah with a mass of 47.0 kg runs at this speed. What is the cheetah’s kinetic energy?
1457.5 Joules
22,583.5 Joules
15 Joules
45,167Joules
What is the kinetic energy of a 4 kg shotput thrown with a velocity of 13 m/s?
(a)
If the 0.3 kg marble was moving at 6 m/s at the bottom of the ramp, how much kinetic energy did the marble have?
5.4 J
1.8 J
3 J
6 J
A lamp that plugs into a wall socket draws energy which flows through a thin wire in the bulb causing it to glow. What energy transformations are taking place? (Bonus Question)
