GEN PHY

Question 1

refers to the rate at which the velocity of an object changes over time

Answer 1

ACCELERATION

Question 2

occurs when object speeds up & slows down and change its direction

Answer 2

ACCELERATION

Question 3

acceleration is mathematically expressed as

Answer 3

F=ma
1N= kg×m/s²

Question 4

the role of change is constant over time

Answer 4

UNIFORM ACCELERATION

Question 5

two categories of uniform acceleration

Answer 5

BALANCE FORCE
UNBALANCED FORCE

Question 6

role of change of velocity is not constant

Answer 6

NON-UNIFORM ACCELERATION

Question 7

when an object speed up it experience

Answer 7

POSITIVE ACCELERATION

Question 8

when an object slows down it experiences

Answer 8

NEGATIVE ACCELERATION

Question 9

it occurs when an object move in a circular pattern

Answer 9

CENTRIPETAL

Question 10

a car traveling a highway increases its speed from 20 m/s to 30 m/s in 5 seconds

Answer 10

2 m/s²

Question 11

formula of acceleration

Answer 11

vf - vi
_______
tf - ti

Question 12

gravity

Answer 12

9.8m/s²

Question 13

a cyclist moving at 15 m/s breaks and slows down to 5 m/s in 4 seconds

Question 14

formula of final velocity

Answer 14

Vf=Vi+a•∆t

Question 15

a motorcycle is traveling at 10 m/sand accelerates at a constant speed of 3 m/s for 4 seconds what is the vf of a motorcycle

Answer 15

22 m/s

Question 16

formula of delta time

Answer 16

∆t=Vf-Vi
__________
a

Question 17

a cyclist traveling at 15 m/s starts breaking and decelerates uniformly at -2m/s² how long it will take for the cyclist to stop

Answer 17

7.5 s

Question 18

formula of centripetal

Answer 18

ac= V²
______
r

Question 19

a car is moving around a circular truck with a constant speed of 20 m/s the radius of a truck is 50 m what is the car’s centripetal

Answer 19

8 m/s²

Question 20

formula of instantaneous acceleration

Answer 20

a(t)=dV(t)
__________
d(t)

Question 21

a car velocity is 4t² what is the cars instantaneous acceleration at 3s

Answer 21

24 m/s²

Question 22

kinetic formulas

Answer 22

Vf=Vi+a•t
d=Vi(t)+½a•t²
d=½(Vi-Vf)t
Vf²=Vi²+2a•d
d=Vt-½a•t²