Exam 1

Question 1

Science

Answer 1

The search for relationships that explain and predict natural phenomena

Question 2

Technology

Answer 2

The application of science to meet society’s needs and goals

Question 3

Physics

Answer 3

The search for the relationship between energy and matter

Question 4

Inertia

Answer 4

a property of an object which resists any change in the objects motion

Question 5

Matter

Answer 5

anything that has mass and exhibits inertia

Question 6

weight

Answer 6

a measure of the pull of gravity acting on an object

Question 7

force

Answer 7

a push or pull - change in rest or motion of an objects

Question 8

energy

Answer 8

the ability of an object or system to do work - produce change in an object or an environment

Question 9

mass

Answer 9

the amount of material in an object

Question 10

classical physics

Answer 10

was developed from renaissance to end of 19th century

Question 11

limits to classical physics

Answer 11

1. must move slower than 1% the speed of light
2. objects must be large enough to be seen with a microscope
3. only weak gravitational forces

Question 12

mechanics

Answer 12

a branch of physics that deals with energy and forces and their effect on bodies

Question 13

kinematics

Answer 13

describes the motion of points, bodies, or systems of bodies.

Question 14

dynamics

Answer 14

describes how motion occurs - what forces act upon a body

Question 15

work

Answer 15

the process of producing change in an environment or object work is done when force is applied through a distance

Question 16

scientific method

Answer 16

1. identify the problem 
2, gather info 
3. form a hypothesis 
4. expand the hypothesis 
5. test the hypothesis 
6. evaluate the hypothesis

Question 17

Velocity

Answer 17

displacement divided by the time of displacement. Measured in m/s, is a vector

Question 18

Position

Answer 18

the location of an object as measured compared to other objects that are considered stationary. It is measured in meters. Is a vector

Question 19

Distance

Answer 19

a measure of the change in position of an object. It is measured in meters. It is a scalar.

Question 20

Speed

Answer 20

Time rate of distance traveled. It is measured in m/s. It is a scalar

Question 21

Displacement

Answer 21

The change in position of an object measured in meters. It is a vector.

Question 22

Acceleration

Answer 22

the rate at which velocity changes, it is measured in m/s2. It is a vector. How fast or slow is it getting?