Integrated-Physical-Sciences 무료 덤프문제 온라인 액세스

The gravity exerted by Planet X is less than the gravity exerted by Planet Y.
If a ball were launched upwards on each planet with the same amount of net force, what would the difference be in the acceleration of the ball?

• A.It will initially accelerate more on Planet X.
• B.It will remain still in both cases.
• C.It will initially accelerate more on Planet Y.
• D.It will accelerate the same amount on Planet Y and on Planet X.

Which point In the diagram represents Earth's location when locations in the southern hemisphere receive the most direct sunlight?

• A.D
• B.A
• C.C
• D.B

Numerous experiments have confirmed that if the distance between a light source and an observer is doubled, the intensity of the light as viewed by the observer decreases by a factor of four.
Which type of scientific statement is this?

• A.Hypothesis
• B.Law
• C.Theory
• D.Inference

Which planet has had the greatest role in protecting Earth from comets?

• A.Jupiter
• B.Uranus
• C.Saturn
• D.Neptune

A man holding a stick hits a ball directly upward with the stick.
What type of energy conversion takes place from just after the ball leaves the stick to when it reaches its highest point?

• A.The kinetic energy of the ball is converted to gravitational potential energy.
• B.The thermal energy of the ball is converted to elastic potential energy.
• C.The thermal energy of the ball is converted to chemical potential energy.
• D.The chemical potential energy of the ball is converted to thermal energy.