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BYU Physical Science 100 Midterm 1
Exam 2025 | New Actual Questions With
Verified Answers
5. Gravitational acceleration - correct -answer-strength of force = proportional to
object's mass, NOT motion
strength of gravitational force does not depend on if an object is going up or down
5. contact forces - correct -answer-1. friction
2. normal force
5. forces with matter: - correct -answer-ELECTRICAL - hold matter together
NET FORCE - SUM OF ALL THE FORCES ACTING ON IT
5. contact forces - correct -answer-ELECTRICAL CHARGES near surface of object #1
inter with surface charges of object #2, usually repulsion due to interactions of
boundary electrons
may = an attraction if approaching charged particles get too close.
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FRICTION- repulsion b/w adjacent similar charges - all contact forces begin this
way
5. finding forces - correct -answer-1. does the object participate in a significant
gravitational interaction
2. are there charged objects on current - carrying conductors close enough to be
important? (electromagnetic)
3. what does the object touch (electrical)
5. all forces... - correct -answer-come from interaction, and only the gravitation
and electromagnetic govern the motions of all objects we ordinarily deal with
5. centripetal force - correct -answer-a force that is directed sideways to the
motion of the object... causes directional changes.
strength depends on (1) radius of the circular path, (2) object's speed, (3) object's
mass
5. centripetal force formula - correct -answer-force = (mass x speed2) / radius
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5. with influence of gravity, how does its acceleration change with speed - correct
-answer-all objects accelerate the same amount regardless of speed
5. what forces acting on the moon - correct -answer-one unbalanced gravitational
force
5. the nature of scientific laws - correct -answer-idea
experiments
predict
experiment
result
validate
theory
6. when a material is at rest, contact forces are... - correct -answer-balanced (long
range forces like gravity)
6. no long-range electromagnetic foces = - correct -answer-1. weight and contact
forces govern motion
2. contact forces govern horizontal motion (if touching)
BYU Physical Science 100 Midterm 1
Exam 2025 | New Actual Questions With
Verified Answers
5. Gravitational acceleration - correct -answer-strength of force = proportional to
object's mass, NOT motion
strength of gravitational force does not depend on if an object is going up or down
5. contact forces - correct -answer-1. friction
2. normal force
5. forces with matter: - correct -answer-ELECTRICAL - hold matter together
NET FORCE - SUM OF ALL THE FORCES ACTING ON IT
5. contact forces - correct -answer-ELECTRICAL CHARGES near surface of object #1
inter with surface charges of object #2, usually repulsion due to interactions of
boundary electrons
may = an attraction if approaching charged particles get too close.
,2|Page
FRICTION- repulsion b/w adjacent similar charges - all contact forces begin this
way
5. finding forces - correct -answer-1. does the object participate in a significant
gravitational interaction
2. are there charged objects on current - carrying conductors close enough to be
important? (electromagnetic)
3. what does the object touch (electrical)
5. all forces... - correct -answer-come from interaction, and only the gravitation
and electromagnetic govern the motions of all objects we ordinarily deal with
5. centripetal force - correct -answer-a force that is directed sideways to the
motion of the object... causes directional changes.
strength depends on (1) radius of the circular path, (2) object's speed, (3) object's
mass
5. centripetal force formula - correct -answer-force = (mass x speed2) / radius
, 3|Page
5. with influence of gravity, how does its acceleration change with speed - correct
-answer-all objects accelerate the same amount regardless of speed
5. what forces acting on the moon - correct -answer-one unbalanced gravitational
force
5. the nature of scientific laws - correct -answer-idea
experiments
predict
experiment
result
validate
theory
6. when a material is at rest, contact forces are... - correct -answer-balanced (long
range forces like gravity)
6. no long-range electromagnetic foces = - correct -answer-1. weight and contact
forces govern motion
2. contact forces govern horizontal motion (if touching)
