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65 Cards in this Set

  • Front
  • Back
The two measurements necessary for calculating average speed are
distance and time
The chemical properties of matter comes mostly from its
Heat energy travels from an object with a high
temperature to an object with a lower temperature.
The source of all magnetism is
moving electric charge
When water at 4°C is heated it expands. When water at 4°C is cooled, it
A solid is not considered fluid because
of the fixed arrangement of its atoms or molecules
It is correct to say that impulse is equal to
the change in momentum
Changing the magnetic field intensity in a closed loop of wires induces
current and voltage.

both of these
When two lamps are connected in parallel to a battery, the electrical resistance that the battery senses is
less than the resistance of either lamp.
What exactly is a hydrogen bond?
a strong dipole-dipole attraction involving a hydrogen atom
What is the force of gravity on a 500-N woman standing on the Earth's surface?
500 N
Object and image for a plane mirror lie
equal distances from the mirror
The lowest temperature possible in nature is
The atoms of a polar covalent bond
must be of different elements
When you are in the way of a fast-moving object and can't get out of its way, you will suffer a smaller force of impact if you decrease its momentum over a
long time
One element is distinguished from another by the number of
Colors seen when gasoline forms a thin film on water are a demonstration of
Consider a sample of water at 0°C. If the temperature is slightly increased, the volume of water
Your feet feel warmer on a rug than on a tile floor because the rug
is a better insulator than tile
Most of the electromagnetic spectrum consists of visible light
Which of the following is not a transverse wave
What elements tend to form ionic compounds
elements found on opposite sides of the periodic table
Electromagnetic waves
can travel through a vacuum
A substance that heats up relatively quickly has a
low specific heat capacity
What is the difference between an element and a chemical compound
An element consists of only one type of atom
Which radiation has no electric charge associated with it
gamma rays
Energy transfer by convection is primarily restricted to
Which pulls on the oceans of the Earth with the greater force
the sun
An Earth satellite is simply a projectile freely falling around the Earth
The source of all wave motion is a
vibrating object
A pH of 7 signifies
a neutral solution
Disregarding air resistance, objects fall at constant
A Doppler effect occurs when a source of sound moves
toward you
An object that has potential energy may have this energy because of its
When a nucleus emits a beta particle, its atomic number
changes, but its mass number remains constant
The higher the temperature of an object, the
shorter the wavelengths it radiates
Steam burns are more damaging than burns caused by boiling water because steam
has more energy per kilogram than boiling water, and gives up additional energy when it condenses.(both of these)
When two lamps are connected in series to a battery, the electrical resistance that the battery senses is
more than the resistance of either lamp
A car accelerates from rest at 2 m/s/s. What is its speed 3 s after the car starts moving
6 m/s
Pure water contains
both H3O+ and HO- ions
A device that transforms electrical energy to mechanical energy is a
Water molecules are attracted to sodium chloride because
the dipoles of water are attracted to the ionic charges
The complementary color of blue is
A person is attracted toward the center of the Earth by a 500-N gravitational force. The force of attraction of the Earth toward the person is
500 N
The space shuttle orbits at altitudes greater than 150 km so as to be above Earth's
The volume of matter comes mostly from its
Exert 1 N for a distance of 1 m in 1 s and you deliver a power of
1 W
Which is most responsible for the ocean tides
the moon
It takes 40 J to push a large box 4 m across a floor. Assuming the push is in the same direction as the move, what is the magnitude of the force on the box
10 N
Planets would crash into the sun if it weren't for
their tangential velocities
A skydiver steps from a helicopter and falls for 5 s before reaching her terminal velocity. During this 5-s interval, her acceleration
How many electrons are shared in a single covalent bond
Evaporation is a cooling process and condensation is a
warming process
How are ion-dipole attractions able to break apart the relatively strong ionic bond
Many weaker ion-dipole attractions work together to pull apart the stronger ionic bond
How is a physical change different from a chemical change
The chemical identity of a substance is not altered during a physical change
A molecule is
group of covalently bonded atoms
Polarization is a property of
transverse waves
When the distance between two charges is halved, the electrical force between the charges
heavy object and a light object are dropped at the same time from rest in a vacuum. The heavier object reaches the ground
at the same time as the lighter object
What is the acceleration of a car that maintains a constant velocity of 100 km/h for 10 s
A positive ion has more
protons than electrons
Your weight is
the gravitational attraction between you and the Earth
Complementary colors are two colors that
produce white light when added together
An object is placed exactly halfway between the Earth and the moon. The object will fall toward the
Atoms of a covalent bond are held together by the
electrical attraction between shared electrons