• Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

Card Range To Study

through

image

Play button

image

Play button

image

Progress

1/23

Click to flip

Use LEFT and RIGHT arrow keys to navigate between flashcards;

Use UP and DOWN arrow keys to flip the card;

H to show hint;

A reads text to speech;

23 Cards in this Set

  • Front
  • Back
What do we call the tendency of matter to stay at rest if it is at rest or to continue moving at a constant velocity if it is in motion?
inertia
What is defined as the change in velocity over a period of time?
acceleration
What do we call the attraction that allows molecules of chalk to stick to one another?
cohesion
What is the measurement of the pull of gravity upon an object?
weight
Which state of matter has a definite shape and occupies a definite amount of space?
a solid
T or F- Newton's first law of motion states that the velocity of an object does not change unless the object is acted upon by a motor.
False- by an outside force
T or F- Newton's second law of motion states that the acceleration of an object is directly related to the strength of the force and inversely related to the object's mass.
True
T or F- Newton's third law of motion states that for every action, there is an equal and opposite condition.
False- there is an equal and opposite reaction
T or F- Pressure is the resistance caused by moving one object against another.
False- friction
T or F- Acceleration is a change in velocity over a period of time.
True
T or F- The rate of doing work is called force
False- it is called power
T or F- In third-class levers, the input and output forces are on either side of the fulcrum.
False- They are on the same side as the fulcrum.
T or F- The joule is the metric unit of work and energy.
True
T or F- The force we apply to a machine is called the work.
False- it is called the effort
T or F- The total of the mass and energy of the universe always remains the same.
True
T or F- The force machines help us to overcome is called friction.
False- it is called resistance
T or F- Effort force tells us the number of times a machine multiplies our effort.
False- mechanical advantage tells us the number of times a machine multiplies our effort.
What are the three basic forms of matter?
solid, liquid and gas
How does weight differ from mass?
Mass is the amount of matter in an object.
Weight is a measurement of the pull of gravity on an object.
What two things does velocity tell us about motion?
speed and direction
What two forms of energy can mechanical energy be classified as?
kinetic and potential
What can be identified as the ability to do work in the scientific sense?
energy
What are devices called, that do work and multiply muscle power enabling them to complete tasks?
machines