Physical science chapter 2

2 N

A 10 N falling object encounters 8 N of air resistance. The bet force on it is

Either away from you or toward you

A Doppler effect occurs when a source of sound moves

1500 N

A car has a mass of 100 kg and accelerates 1.5 m/s squared what is the magnitude of the force exerted on the car

Neither acceleration nor speed

A falling object that has reached its terminal speed continues to gain

500 N

A person is attracted down word in the center of earth by a 500 N gravitational force the force of attraction of earth toward the person is

Ball against the bat

A player hits the ball with the bat if one part of the interaction is the back against the wall the other is the

The box has inertia

A sheet of paper can be pulled from Beneath a box of cerealwithout toppling it if the paper is jerk quickly. this best demonstrates that

A wave reflects upon itself

A standing wave can occur when

Both time and space

A wave viberation

A single reaction

Action reaction forces compromise the parts of

Remains constant

After a ball tossed up word leaves your hand the force of gravity on it

Arrows push in the bow stings

An archer shoots an arrow. If the action force is the bowstring on the arrow, the reaction is the

Without the need of a force

An object in motion tends to remain in motion

Longitudinal waves

Compression and rare fraction are characteristics of

And you move at the same horizontal speed before during and after you jump

Earth moves about 30 km/s relative to the sun when you jump aboard in front of the wall the wall doesn't slam into you at 30 km/s because the wall

20hz to 20000hz

Humans range of hearing

3000 N

I told truck exerts a force of 6000 N on a car that accelerates at 2 m/s squared the mass of the car must be

0.05s

If the frequency of a certain wave is 20hz, it's period is

10 m/s squared

If you drop an object it will accelerate downward at a rate of 10 m/s squared if you instead throw it downward it's acceleration in the absence of air resistance will be

The phenomenon of beats results from sound

Interference

Acceleration

Newtons second law directly involves

Steel

Sound travels faster in

Light , water, sound waves

The Doppler affect is characteristics of

The persons body pulling on earth

The attraction of a persons body toward earth is called White be reaction to this force is

Road

The force exerted on the tires of a car to directly accelerated along the road is exerted by the

Zero

The force required to maintain an object at a constant velocity in a free space is equal to

Amplitude

The loudness of a musical sound is a measure of the sound wave's

Transmits the wave

The medium in which a wave travels

Both shape and size and elasticity

The natural frequency of an object depends on its

Zero

The net force on any object moving at a constant velocity is

An echo

The reflection of sound is

Vibrating object

The source of all wave motion is a

The air temperature

The speed of a sound wave in air depends on

Along the direction of wave travel

The vibration of a longitudinal wave move in a direction

Heavier object

Two objects of the same size but unequal weights are dropped from a tall tower taking air resistance into consideration the object to hit the ground first will be the

300 N upward

When a 500 N parachutist opens his chute and experiences 800 N of air resistance, the net force on him is

Constant

When a falling object has reached its terminal velocity, its acceleration is

Decreases

When an object falls through the air and gain velocity, the net force actually

Decreases

When an object falls through the air, as velocity increases its acceleration

Downward and constant

When you toss a coin straight up it moves upward turns around and drops. during this time the acceleration of the coin is

Sound

Which is a longitudinal wave

Follow a straight line path

Whirl a rock at the end of a string and it follows a circular pat. If the string breaks, the rock tends to