Physical Science Final

We explain light today

An image is said to be real if

Astronauts are weightless and gravity exerts no pull on them when they are in orbit.

In transverse waves, the medium

The unit of electric charge is called the...

Which person is most prominently associated with the particle theory of light

The image formed by a plane (flat) mirror is

The lowest frequency possible in a vibrating string undergoing resonance

A light ray passes from air into water and makes an angle of 30 degrees with the normal line. Which statement best describes the angle of the refracted light ray

Due to the Doppler Effect, what happens to the apparent pitch of a sound if the source is moving away from you?

Electrons in a circuit move very fast at nearly the speed of light

Through which substance would sound travel the slowest?

The region around an electric charge whre teh electrostatic force can be felt is called

While exploring an ancient Mayan tomb, you discover that the walls are closing in on you. By exerting 400 N of force, you are able to keep the wall from coming closer. The work you are doing on the wall is..

The bending of a wave as it passes from one medium into another is called..

A unit of electric potential difference between two points is called the

Which direction does the centripetal force always point

Which answer descries a way to increase the strength of an electromagnet

Which type of circuit is most likely to be found in your house wiring

The unit of electric current is

The higher the frequency of a sound wave

Which answer best describes what makes a material magnetic

Polarized light vibrates

Which is not true about the earth's magnetic field?

The tendency of a moving object to remain in unchanging motion in the absence of an unbalanced force is called

How many grams are in 4.30 kg?

Ignoring air resistance, the velocity of a falling object

Three bulbs are connected together in series and attached to a voltage source. What happens if the middle bulb burns out?

Electrostatic force is the force that causes "static cling" in clothes when you forget to put the Bounce sheet in the dryer. If you double the distance between two objects, the electrostatic force decreases to one fourth of its original value. What type of relationship exist between distance and electrostatic force.

Longitudinal waves with a frequency below 20 Hz that are to low to be heard by humans are called

Total internal reflection

Waves carry only energy from place to place

An object spinning in a circle moves at a constant speed. Is it accelerating?

What happens to the size of the electrostatic force between two objects if the distance between them is increases by 3 times?

A projectile will follow a curved path called a

The earths magnetic field is due to a stationary, non moving liquid metal core

It is impossible to separate magnetic poles. Cutting a magnet in half will only create two new magnets each with a north and south pole

Which answer describes alternating current?

As prism separates the colors of sunlight into a spectrum because

Kinetic energy refers to

An astronaut goes from the Earth to the moon. Which statement is true about his mass and weight in two locations?

The number of complete vibrations that occur in one second is called

Phenomena such as diffraction and interference can be most easily explained in the terms of

When the crest of one wave arrives at the same time and place as the crest of another identical wave

A machine can greatly increase the amount of work that is done when moving an object.

If you scuff your feet along the carpet and become negatively charged by friction, what is true about the carpet?

If an object becomes positively charged is is due to

Imagine an experiment in which a 16lb bowling ball and a 10lb bowling bowl are dropped from the fifth floor at the same time. The heavier ball will reach the ground first.