Regents

Question 1

which pair of quantities represent scalar (direction doesn’t matter) quantities?

Answer 1

energy and time

Question 2

which pair of quantities represent vector (direction does matter) quantities?

Answer 2

displacement and velocity

Question 3

A ball is thrown straight up from the surface of Earth. Which statement best describes the ball’s velocity and acceleration at the top of it’s flight?

Answer 3

Velocity is 0

Acceleration is nonzero (9.8)

Question 4

A student runs a plastic comb through her hair, the comb acquires a negative charge. This charge results from the transfer of

Answer 4

electrons from the hair to the comb

protons never move

Question 5

How would the mass and the weight on the moon compare to the mass and the weight on Earth

Answer 5

Mass would be the same but weight would be different

Question 6

AN object is moving w/ constant speed in a circular path. The object’s centripetal accelerations remains constant in

Answer 6

Magnitude, only

Magnitude means speed

Question 7

when pulling a string diagonally - which way is it actually being exerted?
what mode does calculator have to be in?

Answer 7

horizontal = cos

degree

Question 8

Tip: Don’t assume that every # given

Answer 8

is needed

Question 9

As a student walks down hill at constant speed, his gravitation potential energy

Answer 9

decreases and kinetic energy remains the same

Question 10

Resistance is proportionate to ______

Halving the _____ Halves the Resistance

Answer 10

Length

Question 11

In an opening electrical circuit, the source of potential difference is

Answer 11

battery

Question 12

which way do the North Side arrows point

South

Answer 12

1) OUt

2) IN

Question 13

A student claps his hands once to produce a sudden loud sound that travels through the air.
This sound is classified as a

Answer 13

longitudinal mechanical wave

Question 14

A STUDENT GENERATES WATER WAVES IN A POOL of water.

In order to increase the energy carried by the waves, the student should generate waves w/

Answer 14

greater amplitude

Question 15

As frequency increases what will decrease

Answer 15

wavelength

Question 16

angle of reflection or reaction I always respect to what

Answer 16

normal line

Question 17

what characteristic of the wave can not change as the wave enters the second medium

Answer 17

frequency

Question 18

the Doppler effect is best described as the

Answer 18

shift in the observed frequency and wavelength of a wave caused by the relative motion btwn the wave’s source and an observer

Question 19

if there is a picture of a rod what is the dotted line

Answer 19

reflection

Question 20

which type of forces exist btwn the two protons in a helium nucleus
What’s repulsive
What’s attractive

Answer 20

repulsive electrostatic force

and attractive strong nuclear force

Question 21

if it mentions benson or other weird words where to look (most likely)

Answer 21

classification of matter

Question 22

if it asks about an excited mercury of hydrogen number in the energy level (any letter)
where to look

Answer 22

energy level diagrams

Question 23

electron =

Answer 23

negative

Question 24

internal energy

Answer 24

friction

Question 25

charged objects can

Answer 25

attract and repel neutral objects

Question 26

microwaves can have a wavelength closet to

Answer 26

length of a physics students thumb

Question 27

which combo correctly Pais a vector quantity with its corresponding unit

Answer 27

vector - m/s

Question 28

how does inertia change

Answer 28

all based on mass more mass = more inertia less mass = less inertia

Question 29

which change would have resulted in a greater time of flight for the projectile

Answer 29

increasing the height to 2h

Question 30

mg cos =

Answer 30

push you into hill

Question 31

mg sin =

Answer 31

dragging u down the hill

Question 32

as a toy car moved in a clock wise horizontal circular path at a constant speed where is acceleration and velocity (which way are arrows pointing)

Answer 32

``` V = up A = towards center ```

Question 33

which forces can either be attractive or repulsive

Answer 33

magnetic and electrostatic

Question 34

longer wire = | thinner wire=

Answer 34

More resistance | Less

Question 35

work per unit charge required to move a charge btwn two points in an electric circuit defines electric

Answer 35

potential diff

Question 36

a light wave can travel through

Answer 36

both water and vacuum

Question 37

resonance

Answer 37

two or more things that work simetanuosly to produce max sound

Question 38

which characteristics of a light wave remain constant when the light waves travels from air into corn oil

Answer 38

period and frequency

Question 39

the spreading out of a wave after passing through an opening in a barrier is an ex of

Answer 39

diffraction

Question 40

after two light waves have interfered in a vacuum the two waves will be

Answer 40

changed in amp

Question 41

out of phase

Answer 41

not in sync

Question 42

A unit used for a vector quantity is

Answer 42

Newton

Question 43

If an object is in equilibrium | Acceleration always has to be

Answer 43

Zero

Question 44

Which statement describes the gravitation force and the electrostatic force between two charged particles

Answer 44

The gravitation force MUST be attractive | Whereas the electrostatic force may be either attractive or repulsive

Question 45

``` An electrostatic force exists between two +3.20x10^-19 coulomb point charges separated by a distance of .03 meter As the distance between the two point charges is decreased, the electrostatic force of ```

Answer 45

Repulsion between the two charges | increases

Question 46

Frequency is

Answer 46

WAVES/SECONDS

Question 47

If a metal conducts better electricity than what must the resistance be

Answer 47

Less

Question 48

When only one lightbulb blows out, an entire string of decorative lights goes out. The lights in this string must be connected in

Answer 48

Series with one current pathway

Question 49

When a wave travels through a medium, the wave transfers

Answer 49

Only energy

Question 50

Glass may shatter when exposed to sound of a particular frequency. This phenomenon is an ex of

Answer 50

Resonance

Question 51

Which waves require a material medium for transmission

Answer 51

Sound waves = air

Question 52

What will charges objects produce

Answer 52

Electric and magnetic fields

Question 53

When an isolated conductor is placed in the vicinity of a positive charge, the conductor is attracted to the charge. The charge of the conductor

Answer 53

Could be neutral or negative

Question 54

When the sound is coming to you | What happens to the frequency and wave length

Answer 54

Higher frequency | Shorter wavelength

Question 55

How many quarks do protons and neutrons have

Answer 55

3 quarks

Question 56

Charge of porton Electron Neutron

Answer 56

+1 -1 0

Question 57

What fundamental interaction is responsible for binding together the protons and neutrons in a helium nucleus

Answer 57

Strong nuclear force

Question 58

Why the lightning strike is seen b4 thunder is heard

Answer 58

Light travels faster than sound

Question 59

If another resistors would be added in a parallel circuit | What would happen to the current through the first resistor

Answer 59

Stay the same

Question 60

How to measure with protractor

Answer 60

Center protractor | And subtract what you have with 90

Question 61

How many ft in 1 meter

Answer 61

3 feet

Question 62

What does 180° rep | What happens if one is going west but presses the brakes

Answer 62

It means opposite | The direction will become east because brakes act in opposition

Question 63

Units for impulse

Answer 63

N/S