IPC final exam review Questions with
100% Correct Answers
What are the four universal forces? Correct Answer: electromagnetic, strong
nuclear, weak nuclear, and gravitational
True or false? Electromagnetic force is associated with charged particles.
Correct Answer: true
Name the only two forces that can both attract and repel. Correct Answer:
electric forces and magnetic forces
Objects with like charges ___________ one another, and objects with opposite
charges __________ one another. Correct Answer: repel; attract
The force that holds particles in the nucleus together is the _________________.
Correct Answer: strong nuclear force
What evidence suggests that nuclear forces have a powerful force of
attraction? Correct Answer: they're able to hold the protons together that
electrically would repel each other
Over extremely short distances, approximately how many times stronger is the
strong nuclear force than the electric force of repulsion? Correct Answer: 100
Compare and contrast the strong and weak nuclear forces. Correct Answer:
Strong-Strong/Weak-Weak
State Newton's law of universal gravitation. Correct Answer: every object in the
universe attracts every other object; anything that has mass has gravity
, The gravitational force of attraction between two objects depends on
_____________ and ____________. Correct Answer: mass; distance
True or false? Gravity is the weakest universal force, but it is the most effective
force over long distances. Correct Answer: true
The sun's mass is much greater than the mass of Earth, so the sun's gravitational
force is much ____________ than that of Earth. Correct Answer: stronger
Why does the moon orbit Earth in a nearly circular path? Correct Answer: the
moon's inertia and centripetal force from Earth produce the nearly circular path
True or false? The gravitational pull of the
moon is the primary cause of Earth's ocean tides. Correct Answer: true
True or false? The pull of Earth's gravity can slow an artificial satellite, causing it
to lose altitude and fall from the sky. Correct Answer: Both. If the altitude was
low the answer would be true. If the altitude was high the answer would be
false.
Gravity Correct Answer: a force of attraction
Gravity between planets is determined by the planet's _________, ___________,
and ______________ Correct Answer: mass, distance, and inertia.
As distance increases the gravitational force ___________. Correct Answer:
decreases
As mass increases the gravitational force ________ Correct Answer: increases.
Gravity acts as a(n)... Correct Answer: centripetal force
centripetal force Correct Answer: a center seeking force
100% Correct Answers
What are the four universal forces? Correct Answer: electromagnetic, strong
nuclear, weak nuclear, and gravitational
True or false? Electromagnetic force is associated with charged particles.
Correct Answer: true
Name the only two forces that can both attract and repel. Correct Answer:
electric forces and magnetic forces
Objects with like charges ___________ one another, and objects with opposite
charges __________ one another. Correct Answer: repel; attract
The force that holds particles in the nucleus together is the _________________.
Correct Answer: strong nuclear force
What evidence suggests that nuclear forces have a powerful force of
attraction? Correct Answer: they're able to hold the protons together that
electrically would repel each other
Over extremely short distances, approximately how many times stronger is the
strong nuclear force than the electric force of repulsion? Correct Answer: 100
Compare and contrast the strong and weak nuclear forces. Correct Answer:
Strong-Strong/Weak-Weak
State Newton's law of universal gravitation. Correct Answer: every object in the
universe attracts every other object; anything that has mass has gravity
, The gravitational force of attraction between two objects depends on
_____________ and ____________. Correct Answer: mass; distance
True or false? Gravity is the weakest universal force, but it is the most effective
force over long distances. Correct Answer: true
The sun's mass is much greater than the mass of Earth, so the sun's gravitational
force is much ____________ than that of Earth. Correct Answer: stronger
Why does the moon orbit Earth in a nearly circular path? Correct Answer: the
moon's inertia and centripetal force from Earth produce the nearly circular path
True or false? The gravitational pull of the
moon is the primary cause of Earth's ocean tides. Correct Answer: true
True or false? The pull of Earth's gravity can slow an artificial satellite, causing it
to lose altitude and fall from the sky. Correct Answer: Both. If the altitude was
low the answer would be true. If the altitude was high the answer would be
false.
Gravity Correct Answer: a force of attraction
Gravity between planets is determined by the planet's _________, ___________,
and ______________ Correct Answer: mass, distance, and inertia.
As distance increases the gravitational force ___________. Correct Answer:
decreases
As mass increases the gravitational force ________ Correct Answer: increases.
Gravity acts as a(n)... Correct Answer: centripetal force
centripetal force Correct Answer: a center seeking force
