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Alexandra Russel

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Cards in this guide (17)
What is nuclear energy

Nuclear energy is the energy in the nucleus, or core, of an atom. Atoms are tiny units that make up all matter in the universe. Energy is what holds the nucleus together. There is a huge amount of power in an atom's dense nucleus. Nuclear energy is seen when nuclear fusions or fissions happen.

Which form of energy is due to the movement of electrons

ELECTRICAL

Is it bad if you have a heavy period on one month and a light one the next month

No it is not bad, as some ladies have a heavy period for one month and then a light one or they may have two heavy periods and then one light one also.

A soccer player sprinting down the field demonstrates which form of energy

kinetic

What the the two main states of mechanical energy

Potential energy and Kinetic energy

A person running around a track demonstrates energy

kinetic

Inclined plane makes work easier by increasing the distance and decreasing the

force

If you want to lift a 5-kg box to a height of 1 meters how much work must be done

98 j

When a deck of cards slips out of your hands and falls to the ground gravity does work on it

True - apex =)

What is the kinetic energy of a 10kg bicycle moving at 10 ms

Kinetic energy is equals to 0.5mv² where m is the mass in kilograms and v is the velocity in ms-1

So, for a bicycle of 10kg moving at 10ms-1,
K.E
= 0.5mv²
= 0.5(10)(10²)
= 500 J

How much work must be done on a 10-kg snowboard to increase its speed from 4 ms to 6 ms

100 J

What is an example of conditions not producing work

the momentum must be greater than the force . the force may be very large

How much work must be done on a 5 kg snowboard to increase its speed from 2 ms to 4 ms

work=mass*speed,5*2=10

How were slaves affected by the new republic

Some northern states made slavery against the law.

How long can you car be parked along freeway before towed

Four hours

How does the density of a liquid compare with the density of a solid

That depends on the liquid and the solid. Liquid mercury has a very high density. Liquid gasoline has a very low density. At the melting point the density of a liquid and a solid are almost the same.

How much must be done for a 100-kg car to increase its speed from 1ms to 2ms

10kg

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