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Why more energy is required to push a wheel barrow up hill than on ground level?
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What is the state when all electrons of an atom are in the lowest possible energy levels?
whenever they are in there most stable state , then they are at their lowest energy level. as u provide energy , they get excited and then upgrade to further energy level . and due to loss of energy , they regain earlier positions.
Can the gravitaional potential energy of an object be negative?
Yes. Any object that is above a reference level has positive potential energy; anything below that reference level has negative potential energy. For example, if the chosen reference level is the ground level, anything below the ground level has negative potential energy. Please note that the choice of reference level is arbitrary. What matters is the DIFFERENCE in potential energy between two positions - and that doesn't change, whether you choose (for example) the ground level, or some other level, as a reference level.
What energy do gliders use?
The gravitational potential energy, from the fact that they are at a higher level, i.e., above ground level.
Why an airplane flying from New York to Los Angeles has both kinetic energy and potential energy?
Kinetic energy: because it is moving.Potential energy: because it is above ground level. Note: This assumes that you measure potential energy from ground level; you can actually choose any altitude as your reference level.
Can kinetic energy ever be more than its potential energy?
Sure. For example, if an object is at ground level, or below, and moving, then its potential energy would be zero or negative; while its kinetic energy would be positive. Note: The reference level for "gravitational potential energy" is quite arbitrary. Often the ground level is chosen.
What is the state when all electrons of an atom are in the lowest possible energy levels?
whenever they are in there most stable state , then they are at their lowest energy level. as u provide energy , they get excited and then upgrade to further energy level . and due to loss of energy , they regain earlier positions.
What energy do gliders use?
The gravitational potential energy, from the fact that they are at a higher level, i.e., above ground level.
Can the gravitaional potential energy of an object be negative?
Yes. Any object that is above a reference level has positive potential energy; anything below that reference level has negative potential energy. For example, if the chosen reference level is the ground level, anything below the ground level has negative potential energy. Please note that the choice of reference level is arbitrary. What matters is the DIFFERENCE in potential energy between two positions - and that doesn't change, whether you choose (for example) the ground level, or some other level, as a reference level.
What form of energy does an elevator have?
If it is above a chosen reference level (e.g., ground level), it has potential energy. While it is moving, it has kinetic energy.
Why an airplane flying from New York to Los Angeles has both kinetic energy and potential energy?
Kinetic energy: because it is moving.Potential energy: because it is above ground level. Note: This assumes that you measure potential energy from ground level; you can actually choose any altitude as your reference level.
What energy level are the valence electrons located in lithium?
2nd energy level, the electron arrangement is 2,1 at ground state
How can you tell that a high diver has gravitational potential energy?
If an object is above ground level, it has positive gravitational potential energy. (This assumes you define ground level to be zero - actually, you can define any level to be zero.)
Besides the earth what things have a gravitational pull?
Any object that is above the reference level (usually taken as ground level) has potential energy, according to the formula PE = mgh.Any object that is above the reference level (usually taken as ground level) has potential energy, according to the formula PE = mgh.Any object that is above the reference level (usually taken as ground level) has potential energy, according to the formula PE = mgh.Any object that is above the reference level (usually taken as ground level) has potential energy, according to the formula PE = mgh.
What is the energy required to move an electron up an energy level called?
Ionisation energy, or alternatively quantum energy.
Can kinetic energy ever be more than its potential energy?
Sure. For example, if an object is at ground level, or below, and moving, then its potential energy would be zero or negative; while its kinetic energy would be positive. Note: The reference level for "gravitational potential energy" is quite arbitrary. Often the ground level is chosen.
How many electrons are required to completely fill the third energy level?
no. of electrons to fill an energy level = 2n2. = 2x32 = 18
A ball held above the floor has what type of energy?
Any object above ground level has gravitational potential energy. Actually, ground level is commonly chosen as the reference level, but any other level may be chosen as well. The choice is arbitrary.
