First Lessons in Physical Science ...

Portada
 

Comentarios de la gente - Escribir un comentario

Crítica de los usuarios - Marcar como inadecuado

This book is a series of experiments and questions with no answers. That makes it virtually useless to the serious learner of physical sciences. The experiments are all very well done, but with no interpretation of the results. You will have to look for answers elsewhere.

Otras ediciones - Ver todas

Términos y frases comunes

Pasajes populares

Página 68 - E ; each boy, after the transmission of the push, becoming himself erect. E, having nobody in front, is thrown forward. Had he been standing on the edge of a precipice, he would have fallen over ; had he stood in contact with a window, he would have broken the glass ; had he been close to a drum-head, he would have shaken the drum. We could thus transmit a push through a row of a hundred boys, each particular boy, however, only swaying to and fro. Thus, also, we send sound through the air, and shake...
Página 68 - E is now foremost, and A finishes the row behind. I suddenly push A, A pushes B, and regains his upright position; B pushes C; C pushes D; D pushes E; each boy, after the transmission of the push, becoming himself erect. E, having nobody in front, is thrown forward. Had he been standing on the edge of a precipice, he would have fallen over; had he stood in contact with a window, he would have broken the glass...
Página 117 - The magnetic poles of the earth do not coincide with its geographical poles and, consequently, in some places, the magnetic needle does not point to the geographical north.
Página 92 - It takes more heat to raise the temperature of water than it does to raise the temperature of almost any other substance.
Página 22 - Every body continues in its state of rest or of uniform motion in a straight line unless compelled to change that state by an external force. (2.) Every motion or change of motion is in the direction of the force impressed and is proportionate to it.
Página 124 - I dissected up a small flap, a quarter of an inch wide and an inch and a half long...
Página 65 - Describe an experiment to determine the number of pounds of atmospheric pressure to the square inch.
Página 28 - The straight line passing through the center of gravity of a body toward the center of the earth is called the line of direction for that body.
Página 35 - Because the apparatus balances, it is said to be in equilibrium. A body is in equilibrium when all the forces acting upon it are balanced.
Página 50 - Divide the weight in air by the loss of weight in water. The quotient will be the specific gravity.

Información bibliográfica