| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.38 |
| Score | 0% | 68% |
"For every action, there is an equal and opposite reaction." This describes which of Newton's laws of motion?
fourth |
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second |
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first |
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third |
Newton's third law of motion states that For every action, there is an equal and opposite reaction. When an object exerts a force on another object, the second object exerts a force of equal magnitude in the opposite direction on the first object.
The energy posessed by a ball on the window ledge of a tall building is an example of what kind of energy?
gravitational |
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kinetic |
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potential |
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inherent |
Kinetic energy is the energy posessed by a moving object. Potential energy is stored energy in a stationary object based on its location, position, shape, or state.
Generally, an atom has __________ negative electrons orbiting the nucleus as it does positive protons inside.
fewer |
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double the number of |
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equal numbers of |
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more |
An electron is a subatomic particle that orbits the nucleus of an atom. It carries a negative electric charge. Generally, an atom has the same number of negative electrons orbiting the nucleus as it does positive protons inside.
What type of cloud is responsible for fog?
cumulus |
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cumulonimbus |
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cirrus |
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stratus |
Clouds are categorized based on their shape, size, and altitude. Stratus clouds are low-altitude clouds characterized by horizontal layering with a broad flat base. When stratus clouds occur on the ground the result is fog.
An element in the physical state of __________ maintains neither a constant volume nor a constant shape.
gas |
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plasma |
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solid |
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liquid |
The gaseous state occurs at a higher temperature range than the solid and liquid states of the same substance. In this state, molecules flow very freely around each other and will spread out as far as they're able. Gases maintain neither a constant volume nor a constant shape.