Ch. 1
What is the unit of measurement for time?
Seconds
What type of system relates distance and movement?
Coordinate
Are weight and mass the same?
No (Mass = amount of matter, weight = force)
What is a force applied through a distance?
Work
What is the average kinetic energy of an object's particles?
Temperature
In an experiment, which variable changes because of the experimenter (they change it)
Independent
Displacement is the ___________ and _________ of an object's change in position.
direction, distance
How many objects have a field?
All
Lever
Pulley
Screw
Wedge
What can help humans keep thermal energy losses to a minimum?
Fiberglass insulation
Fleece jackets
Air
Which type of graph displays data broken down into parts
Pie/circle
What is velocity?
The speed and direction of an object's motion.
Which Law states that "energy cannot be created nor destroyed"?
Law of Conservation of Energy
Give an example of a machine transferring thermal energy.
Refrigerators
Air conditioners
Heat pumps
Name one moral/ethical issue in society today.
Human testing
Animal testing
DNA therapy/technology
"Rate of change of an object's velocity"
Acceleration
Which of Newton's Laws says "To every action there is an equal and opposite reaction force"
Third
List the three types of potential energy:
Chemical
Gravitational
Elastic
What makes water so versatile?
High specific heat
Order the following from least to greatest:
kilo-, centi-, deka-, milli-, hecto-
milli, centi, deka, hecto, kilo
Why would two balls (one thrown horizontally and one dropped vertically from a high place) reach the ground at the same time?
Gravity works on both of the balls.
What are the two types of forces?
Balanced
Unbalanced
When an object is at its highest point, Kinetic energy ________ and gravitational potential energy ___________.
decreases
increases
An object with a high mass and high kinetic energy will have a _______ thermal energy.
High