Physics Cheat Sheet

Question 1

Would cover equal amounts of distance in EQUAL time intervals

Answer 1

Velocity

Question 2

Would cover equal amounts of distance in VARYING time intervals

Answer 2

Acceleration

Question 3

Projectiles move with a constant acceleration d/t gravity in what direction

Answer 3

Vertical

Question 4

Projectiles move with a constant VELOCITY d/t gravity in what direction

Answer 4

Horizontal

Question 5

• Motionless state

- yield a net force of zero

Answer 5

Static equilibrium

Question 6

Force that acts to resist motion of objects

Answer 6

Friction force

Question 7

Support force that acts peroendicular

Answer 7

Normal force

Question 8

Combination of all the forces that act on an object

Answer 8

Net force

Question 9

Describe Newtons 1st, 2nd, 3rd law

Answer 9

1st- object at rest stays at rest
2nd - f=ma relationship between an objects mass and the amt of force needed to accelerate it
3rd - action reaction

Question 10

Product of force on an object and the distance thru wc the object is moved

Answer 10

Work

Question 11

Work done per unit of time

Answer 11

Power

Question 12

Work done is equal to the change in energy

Answer 12

Work energy theorem

Question 13

FACTS

Answer 13

• If the force is PERPENDICULAR to the direction of motion, then no work is done
• the total amount of energy before and after some interaction is constant

Question 14

• Product of mass and velocity

- inertia in motion

Answer 14

Momentum

Question 15

Change in momentum

Answer 15

Impulse

Question 16

Elastic & Inelastic collision

Answer 16

Both of the momentum is conserved
For elastic - no kinetic lost
Inelastic - kinetic e is lost, dt heat deformation etc

Question 17

Impulse

Answer 17

Ft = m🔺v (momentum is a vector)

Question 18

One object breaking into more objects

Answer 18

Explosion

0= mv + mv

Question 19

One object striking and joining to the other

Answer 19

Hit & stick

M1v1 + m2v2 = (m1+m2) v3

Question 20

One object striking and bouncing off of the other

Answer 20

Hit and rebound

M1v1 + m2v2 = m1v3 + m2v4

Question 21

FACTS

Answer 21

In momentum,
In the X direction, the moments add up to the original momentum b4 the collision
In the Y direction, the moments cancel out since there was no momentum

Question 22

Center seeking force

Answer 22

Centripetal

Question 23

Outward pointing force for an object moving in a circular path.
Seems to be pushed outward but it is pulled inward in order to maintain circular path

Answer 23

Centrifugal force

Question 24

Distance from the axis of rotation to the location where the force is applied

Answer 24

Lever arm

Question 25

Force to attract surfaced molecular to make the surface area of fluid as smaller as possible

Answer 25

Surface tension

Question 26

Every particle passing a particular point moves exactly along the smooth patg followed by particles passing that point early

Answer 26

Laminar flow

Question 27

Irregular flow

Answer 27

Turbulent flow