Question

Which statement best describes the relationship between atoms and nuclear forces? (2 points)

a
Strong nuclear forces hold the nucleus of an atom together. Weak nuclear forces hold neutrons and electrons together.

b
Weak nuclear forces hold the nucleus of an atom together. Strong nuclear forces are responsible for breaking down atoms.

c
Weak nuclear forces hold small atoms together. Strong nuclear forces hold large atoms together.

d
Strong nuclear forces hold the nucleus of an atom together. Weak nuclear forces are involved when certain types of atoms break down.

Question 24 (2 points)
Which field of study is quantifiable, makes testable predictions, and uses controlled conditions for experimental procedures? (2 points)

a
Anthropology

b
Psychology

c
Sociology

d
Science

Question 25 (2 points)
Select the statement that best describes how fundamental forces relate. (2 points)

a
All forces begin equally and become varied. The object on which they are acting and the distance to that object determines the amount of force.

b
Weak nuclear and magnetic forces are different because magnetic forces are associated with unmoving charges, and weak nuclear forces are associated with moving charges.

c
All forces are related to the mass of the object on which they are acting. The larger the mass, the weaker the forces become.

d
Electromagnetic and gravitational forces are similar because they both include the interaction between attractive forces.

Question 26 (2 points)
When the mass of an object decreases, the force of gravity (2 points)

a
remains unchanged

b
decreases

c
increases

d
becomes irregular

Question 27 (2 points)
Which is the best example of Newton's First Law of Motion? (2 points)

a
A small, lightweight ball and a large, heavy ball are dropped off the top of a very tall building. They both strike the ground at the same time.

b
A basketball player shoots the ball from half court. It soars toward the basket until another player taps it making it go in a different direction.

c
It takes you more effort to move a large box across the room than it does to move a small box across the room.

d
You push your little sister on the swings at the park. You push harder and she ends up swinging higher.

Question 28 (2 points)
This force governs atomic decay. (2 points)

a
Gravitational

b
Strong nuclear

c
Weak Nuclear

d
Electromagnetic

Question 29 (2 points)
Which statement best defines work? (2 points)

a
Work is the time it takes to move an object once acted upon by a force.

b
Work occurs when balanced forces act on an object and cause movement in the direction of these forces.

c
Work occurs when a force causes motion of an object, and this motion is in the same direction of the applied force.

d
Work is the distance over time that an object moves once acted on by a force.

Question 30 (2 points)
When the sun warms the sidewalk on a hot sunny day, what type of energy conversion occurs? (2 points)

a
Thermal to mechanical

b
Mechanical to chemical

c
Radiant to nuclear

d
Radiant to thermal