Friday
July 25, 2014

Homework Help: Physical Science

Posted by mysterychicken on Sunday, May 3, 2009 at 12:23pm.

Good afternoon. Can someone please check if my answers for these questions are correct? Thanks!

1.Explain in terms of force and distance how using a ramp to load boxes into a truck makes work easier.
(Ans-) Less force is applied but the distance is longer.

2.A ball sitting on the top of a table has potential energy but no kinetic energy. Describe how potential and kinetic energy can change as the ball falls off the table to the floor.
(Ans-) When the ball falls, the kinetic energy increases and potential energy decreases..

3.Explain how the thermal energy of a swimming pool compares to the thermal energy of a lake at the same temperature.
(Ans-) The swimming pool is larger than the lake so it has more particles.


That's it for now but I will have some more later. Thanks again!
-MC

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Physical Science [repost] - Can someone please check if my answers for these ...
Physical Science - I need help answering a few questions? What is intertia? How ...
Science Physics - Ms. Sue could you please explain this to me. Imagine you need ...
physics - A mover pushes a couch a distance of 4 m to the top of a ramp into the...
Physical Science - I needed help on these 3 questions that I don't quite ...
Physical Science [repost] - needed help on these 3 questions that I don't quite...
physical science - alever is used to lift a heavy load. when a to-n force pushes...
Science - trying to lift an 8-N load that is attached to a fixed 2 pulley system...
Math PLEASE HELP - Please finish these questions so I can check my answers. All ...
Vectors - check calculation - A box is dragged with a force of 115 N up a ramp a...

Search
Members