CCA review for Phys Sci

On a trip to Lake Waccamaw,  Matthew notices a duck floating on the lake that oscillates up and down 5 times during a 10 second interval as a periodic wave passes by. What is the frequency of the duck's oscillations?

• 0.10 Hz

• 0.50 Hz

• 2.0 Hz

• 50 Hz

Compared to wave A, which wave has a shorter wavelength but the same amplitude?

• Wave B

• Wave C

• Wave D

• None

Tags

NGSS.MS-PS4-1

What is the acceleration of an object in free fall near the Earth's surface?

• 30 m/s2

• 9800 m/s2

• 3.1 m/s2

• 9.8 m/s2

Tags

NGSS.MS-PS2-4

A person is trying to figure out how their mass and weight are different. They know an object has a mass of 100g. They put in on a scale and weigh it. Based off of your knowledge of weight vs mass, what is the weight of this object.

• 100

• 980

• 10

• 1

Newton's laws describe the way objects move. His first law states "An object at rest remains at rest, and an object in motion remains in motion at constant speed in a straight line unless acted upon by an unbalanced force." This is also called the law of inertia. What is inertia?

• The ability to move

• the strength of a force

• the resistance to change in movement

• the force of gravity

What is the momentum of a 1000kg car at a stoplight?

• 1000 kg*m/s

• 500 kg*m/s

• 200 kg*m/s

• 0 kg*m/s

Tags

NGSS.HS-PS2-2

GFI plugs, switches, and holiday lights all use the same type of circuit. In this type of circuit, the electricity flows through every resistor of the circuit following a single path.

• Parallel

• Series

• Combination

• Complete

Many modern equipment can be charged without having to plug a charger into it. This can include phones, medical equipment/sensors in the body, and even some larger applications like vehicles. When objects are charged by ___________, they do not need to touch each other.

• friction

• conduction

• Induction

• all of these

Amelia is trying to replace a wire to her car battery which has become damaged. She can only find a smaller diameter wire in the store she is shopping in. How would decreasing the diameter of the wires in a circuit influence the resistance and flow of electrons in the circuit?

• It would decrease the resistance, causing fewer electrons to flow through the circuit.

• It would increase the resistance, causing fewer electrons to flow through the circuit.

• It would decrease the resistance by allowing more electrons to flow through the circuit.

• It would increase the resistance by allowing more electrons to flow through the circuit.

Tags

NGSS.MS-PS2-3

An electrical current is defined as the flow of _____ from one point to another:

• Nuclei

• Atoms

• Protons

• Electrons