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Do particles speed up and have low energy or speed up and have high energy?
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Adding energy or increasing the speed of the particles at very low pressure in a solid would cause?
to either melt of explode
The activation energy for the chemical reaction in living thing is high or low?
It is high because the enzymes in cells speed up the reactions by lowering the energy.
Which fact is most important in explaining how enzymes speed reactions?
High-energy collisions are less common than low-energy collisions.
How might a cell overcome a concentration gradient?
Because particles are moving from an area of low concentration o high concentration, energy is required.
How is EM radiation different from alpha and beta radiation?
EM radiation is essentially high energy light, with wavelengths ranging from 10 nanometers low energy x rays to 10 picometers high energy gamma rays. Beta radiation refers to high speed electrons while an alpha ray is a high speed proton.
How do atoms in a liquid transfer heat to nearby atoms?
On a molecular scale, thermal energy is the kinetic energy of individual particles. In a liquid, this thermal energy is transferred to nearby atoms by collisions; a high-speed particle in the liquid collides with a lower-speed particle, transferring some kinetic energy from the high-speed particle to the low-speed particle. When this happens with a large number of particles, thermal energy transfer results.
What is the movement of particles from high to low concentrations that does require energy?
Passive Transport.
What are x-rays high or low frequency?
They're not comparable. -- Cosmic rays are high-energy charged particles moving at less than the speed of light, with mass and kinetic energy but no characteristic frequency or wavelength. -- Gamma rays are electromagnetic radiation.
Adding energy or increasing the speed of the particles at very low pressure in a solid would cause?
to either melt of explode
Why are the road accident on a high speed very worce than accident at low speed?
At higher speeds, more energy (kinetic energy) is involved.
What is low porosity and high porosity?
big particles=low porosity small particles=high porosity
The activation energy for the chemical reaction in living thing is high or low?
It is high because the enzymes in cells speed up the reactions by lowering the energy.
What is the movement of particles from an area of low concentrations to an area of high concentration across a cell membrane?
Low to High would be "Active transport" if I remember Biology correctly. It requires Energy.
What does heat energy do to materials?
all particle made up of particles,.whena material give more heat energy the particles move faster faster moving particles give them a high temperature..when heat energy is taken away from particles they slow down and so amterial has low temperature.in any material there must be some particles which are slower moving and having less energy and some are fast moving having high energy .
What does heat energy do to a material?
all particle made up of particles,.whena material give more heat energy the particles move faster faster moving particles give them a high temperature..when heat energy is taken away from particles they slow down and so amterial has low temperature.in any material there must be some particles which are slower moving and having less energy and some are fast moving having high energy .
The speed of what tells whether a sound will be a high or low pitch?
The speed of the vibration. High speed vibration = high frequency = short wavelength = high pitch. Low speed vibration = low frequency = long waves = low pitch.
Why a high speed collision may cause more damage to vehicles than a low speed collision?
More kinetic energy involved.
