1
PHY
PHY 102 EXAM 2 QUESTIONS AND
ANSWERS UPDATED (2024/2025)
(VERIFIED ANSWERS)
How do you find force of gravity? - ANS ✓F=G(mass1 x mass2)/r^2
M1↑, M2↑=F↑
D↑= GP↓, F↓ - ANS ✓fact
What is momentum? - ANS ✓mass and velocity
How do you find momentum? - ANS ✓Mass x velocity (p=mv)
Does momentum have a direction? - ANS ✓yes (+) or (-)
Does velocity have a direction? - ANS ✓yes (+) or (-)
What is projectile motion? - ANS ✓the curved path that an object follows when
thrown (parabola)
What is acceleration? - ANS ✓9.8m/s^2
PHY 102
, 2
PHY
if velocity changes acceleration __________ - ANS ✓changes
In a parabola, the horizontal direction_____ and the vertical direction___ -
ANS ✓stays the same, changes
Horizontal equation? - ANS ✓V=xfinal x xinitial/ time
Vertical equation? - ANS ✓d=1/2(a)(t^2)
If something is dropped or rolled, does it take the same amount of time to
fall? - ANS ✓yes
is the horizontal and vertical motion independent or dependent? - ANS
✓independent
What is work? - ANS ✓Form of energy that is transferred to or from an object.
What type of work is done if the energy is transferred TO an object? - ANS
✓Positive work
What type of work is done if the energy is transferred From an object? - ANS
✓Negative work
PHY 102
PHY
PHY 102 EXAM 2 QUESTIONS AND
ANSWERS UPDATED (2024/2025)
(VERIFIED ANSWERS)
How do you find force of gravity? - ANS ✓F=G(mass1 x mass2)/r^2
M1↑, M2↑=F↑
D↑= GP↓, F↓ - ANS ✓fact
What is momentum? - ANS ✓mass and velocity
How do you find momentum? - ANS ✓Mass x velocity (p=mv)
Does momentum have a direction? - ANS ✓yes (+) or (-)
Does velocity have a direction? - ANS ✓yes (+) or (-)
What is projectile motion? - ANS ✓the curved path that an object follows when
thrown (parabola)
What is acceleration? - ANS ✓9.8m/s^2
PHY 102
, 2
PHY
if velocity changes acceleration __________ - ANS ✓changes
In a parabola, the horizontal direction_____ and the vertical direction___ -
ANS ✓stays the same, changes
Horizontal equation? - ANS ✓V=xfinal x xinitial/ time
Vertical equation? - ANS ✓d=1/2(a)(t^2)
If something is dropped or rolled, does it take the same amount of time to
fall? - ANS ✓yes
is the horizontal and vertical motion independent or dependent? - ANS
✓independent
What is work? - ANS ✓Form of energy that is transferred to or from an object.
What type of work is done if the energy is transferred TO an object? - ANS
✓Positive work
What type of work is done if the energy is transferred From an object? - ANS
✓Negative work
PHY 102
