Praxis 5442 - Physical Science
Questions and Answers 100% Verified
What is the force that pulls objects toward the center of the Earth?
✔✔Gravity
What is the unit of force in the International System of Units (SI)?
✔✔Newton
What do we call the process of a liquid changing into a gas?
✔✔Evaporation
What is the measure of the amount of matter in an object?
✔✔Mass
What is the energy stored in an object due to its position?
✔✔Potential energy
1
,What is the unit of power in the International System of Units (SI)?
✔✔Watt
What is the term for the rate at which work is done or energy is transferred?
✔✔Power
What is the term for the speed of an object in a given direction?
✔✔Velocity
What is the law that states that for every action, there is an equal and opposite reaction?
✔✔Newton's Third Law
What is the process by which a solid turns into a liquid?
✔✔Melting
What is the energy possessed by a moving object?
✔✔Kinetic energy
2
,What is the unit of electric current?
✔✔Ampere
What is the effect of heat on the molecules of a substance?
✔✔It increases the motion of the molecules.
What is the change of state from a gas to a liquid called?
✔✔Condensation
What is the unit of temperature in the SI system?
✔✔Kelvin
What is the phenomenon where light bends when passing through different mediums?
✔✔Refraction
What is the force that opposes motion between two surfaces?
✔✔Friction
3
, What is the energy required to raise the temperature of a substance?
✔✔Specific heat
What is the tendency of an object to resist changes in its state of motion called?
✔✔Inertia
What is the principle that states energy cannot be created or destroyed, only transformed?
✔✔Conservation of energy
What is the unit of work in the International System of Units (SI)?
✔✔Joule
What is the term for the distance traveled per unit of time?
✔✔Speed
What is the measure of the average kinetic energy of the particles in a substance?
✔✔Temperature
4
Questions and Answers 100% Verified
What is the force that pulls objects toward the center of the Earth?
✔✔Gravity
What is the unit of force in the International System of Units (SI)?
✔✔Newton
What do we call the process of a liquid changing into a gas?
✔✔Evaporation
What is the measure of the amount of matter in an object?
✔✔Mass
What is the energy stored in an object due to its position?
✔✔Potential energy
1
,What is the unit of power in the International System of Units (SI)?
✔✔Watt
What is the term for the rate at which work is done or energy is transferred?
✔✔Power
What is the term for the speed of an object in a given direction?
✔✔Velocity
What is the law that states that for every action, there is an equal and opposite reaction?
✔✔Newton's Third Law
What is the process by which a solid turns into a liquid?
✔✔Melting
What is the energy possessed by a moving object?
✔✔Kinetic energy
2
,What is the unit of electric current?
✔✔Ampere
What is the effect of heat on the molecules of a substance?
✔✔It increases the motion of the molecules.
What is the change of state from a gas to a liquid called?
✔✔Condensation
What is the unit of temperature in the SI system?
✔✔Kelvin
What is the phenomenon where light bends when passing through different mediums?
✔✔Refraction
What is the force that opposes motion between two surfaces?
✔✔Friction
3
, What is the energy required to raise the temperature of a substance?
✔✔Specific heat
What is the tendency of an object to resist changes in its state of motion called?
✔✔Inertia
What is the principle that states energy cannot be created or destroyed, only transformed?
✔✔Conservation of energy
What is the unit of work in the International System of Units (SI)?
✔✔Joule
What is the term for the distance traveled per unit of time?
✔✔Speed
What is the measure of the average kinetic energy of the particles in a substance?
✔✔Temperature
4
