1. Is the circuit shown a series or parallel circuit? And how do you know?

• Parallel because there are multiple paths for the electrons to flow.

• Series because there are multiple paths for the electrons to flow.

• 1. Parallel because there is a single path for the electrons to flow. 

• 1. Series because there  is a single path for the electrons to flow. 

1. Electricity is  the flow of ____________.

• Electrons

• 1. Sometimes protons, sometimes electrons.

• Protons

• Corpus

1. A person slides 1.2 m across a floor before coming to a stop. Why does the person come to a stop? 

• 1. The force of gravity acts on the person. 

• 1. The force of kinetic friction acts on the person.

• 1. The force of inertia acts on the person and fails to keep the person moving. 

• Magic

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2. What is a parachute designed to maximize?

• Gravity

• 1. Air pressure

• 1. Air resistance 

• 1. Normal force

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1. The two types of satellites are ________________ satellites and __________________ satellites. 

• (a) and (c)

• (e) and (j)

• (b) and (f)

• (g) and (h)

What is the name of the Earth’s natural satellite? ________________________

• b

• d

• f

• h

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2. ________________was the first artificial satellite to be successfully placed in orbit around the Earth. 

• a

• b

• c

• d

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1. How does an air mattress protect a stunt person landing on the ground after a stunt? 

• 1. It reduces the kinetic energy loss of the stunt person

• It lengthens the stopping time of the stunt person and reduces the force applied during the landing.

• 1. It reduces the momentum change of the stunt person.

• 1. It increases the momentum change of the stunt person.

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1. Friction is a force that acts in an ___________ direction of movement.

• Same

• 1. Opposite

• Parallel

• West

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1. Which one of the following statements concerning momentum is true?

• 1. Momentum is a scalar quantity.

• 1. The SI unit of momentum is kg/s    

• 1. An object only has momentum when it’s moving.

• 1. Momentum is a force.

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