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Physics

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Shyann Murazik

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Cards in this guide (18)
Inertia in a sentence

Inertia is, essentially, the body's resistance to change. An example sentence would be: Without inertia, we would be all over the place.

What should be included in a experimental design because of the way data is analyzed using statistics

Replication

What is change in total momentum

If momentum is transferred from one object to another, this change of momentum is called IMPULSE. The total change of momentum of an ENTIRE, ISOLATED SYSTEM, of course, is always zero.

Which force in fluids opposes motion

Such force is called viscosity..the force produces in liquid and opposes the motion of fluid and also the motion of the objects in fluid..it is also called the internal friction..

What is the difference between a Newton and a Newton Meter

"Newton" is a unit of force.

"Newton-meter" is a unit of energy. It's the energy expended by a force of one newton

acting through a distance of one meter.

Answer

A newton is the SI unit for force.

A newton metre is the SI unit for torque.

If a 500 N parachutist opens their chute giving an air resistance force of 900 N what is the net force

If the falling parachutist has a downward force of 500 N, and the air resistance force is 900 N (negative), then the net force is:500 N - 900 N = -400 N

So, the parachutist gets a net upward force, causing him to decelerate while continuing to move downward, due to gravity.

Does the gravitational force decrease as distance between two objects increase

Yes it does.

How do you convert mechanical power to electric power

we can use alternator to convert mechanical energy into electrical energy

Further Comment

As the above answer indicates, you convert mechanical energy (not power) into electrical energy (not power). Power simply describes the rate at which this energy conversion takes place.

How fast an object's position is changed over time is the object's is what

Its the objects Velocity.

What is the only factor needed to cacluate change in velocity due to acceleration of gravity 9.8

time...

What are three statements that are true about Francis Drake

What are three statements that are true about Francis Drake?

When a mass suspended from a spring is in its equilibrium position the upward force exerted by the spring is equal to the downward force exerted by gravity acting on the mass

Yes true

Is the sun capable of its own light

Yes. The sun produces all the heat and light energy to all the planets in the Solar System.

What term used to describe rate of radioactive isotopes

This term is half-life.

How does sound from a vocal cord travel to a glass and shatter it

The sound waves produced by the vocal chords contain energy and this energy is transmitted though the air to the glass, sound waves are pressure waves. The glass vibrates in resonance with the pressure variations and energy builds up in it to the point where it can shatter.

Which abiotic factor most influences the water cycle

Air

What characteristic is associated with potential energy rather than kinetic energy

Potential energy is associated with height. Kinetic energy is associated with motion.

What statement best describes what happens when heat is transferred from a toaster to bread

The thermal energy used to toast the bread changes to chemical energy

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