Ssa Physical Sciencesa

 Luis rubbed a balloon on his hair and held the balloon next to a faucet trickling water. He observed that as the balloon was placed close to the water, the stream of water appeared to “bend” to move out of the way. Which of the following forces is responsible for the stream of water moving away from the balloon?

•  Gravity
• Magnetism
•  Friction
• Electric

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NGSS.MS-PS2-3

NGSS.MS-PS2-5

If a spring is attached to two boards with one board at each end of the spring, and the two boards   are pulled far apart to stretch the spring, what force will the spring exert in response?

• It will sag between the two boards
• It will pull the boards toward each other
• It will hold the boards steady in one place
• It will spin the boards in opposite directions

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NGSS.MS-PS2-5

Imagine two planets, Planet A and Planet B, in a distant galaxy. Both planets have the same size, but Planet A has more mass than Planet B. Suppose two identical alien space vehicles land on each planet.  Which of the following statements is true? 

• The weight of the space vehicle is greater on Planet A, but the vehicle’s masses are the same on both planets
• The mass of the space vehicle is greater on Planet A, but the vehicle’s weights are the same on both planets
• Both the mass and weight of the space vehicle are greater on Planet A
• Both the mass and weight of the space vehicle are the same on both planets

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NGSS.MS-PS2-4

A ball rolls down from the top of a grassy hill, reaches the bottom of the hill, continues to roll, and then starts to slow down and comes to a stop. What forces caused this ball's motion?

• Frictional force caused the ball to roll down the hill, but air resistance caused the ball to slow  down and stop.
• Magnetic force caused the ball to roll down the hill, but gravity caused the ball to slow down and stop.
• The force of the hill caused the ball to roll down it, but gravity caused the ball to slow down and stop
• Gravity caused the ball to roll down the hill, but frictional force caused the ball to slow down and stop.

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NGSS.MS-PS2-2

NGSS.MS-PS2-4

The diagram below shows forces acting on a model airplane. Both its speed and height above the ground are constant.

• The lift is equal to the drag.

• The lift is less than the weight.

• The thrust is equal to the weight.

• The thrust is greater than the drag

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NGSS.MS-PS2-1

NGSS.MS-PS2-2

The displacement-time graph below represents the motion of a cart initially moving forward along a straight line. During which interval is the cart moving forward at constant speed?

• AB

• DE

• CD

• BC

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NGSS.MS-PS3-1

A scientist created the graph below of the motion of three objects. Which of the following is correct about the motion of the objects?

• Object Q is not moving at all
• Object S is traveling at a faster speed than Object R
• Object R is increasing in speed by 2 m/s
• Object R is traveling at a slower speed than Object S

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NGSS.MS-PS3-1

Electromagnetic radiation is energy that travels in waves. Some examples of electromagnetic radiation are visible light, radio waves, and x-rays. Which statement is true for all forms of electromagnetic radiation?

• All forms of electromagnetic radiation travel at the same speed in a vacuum.
• All forms of electromagnetic radiation have the same frequency
• All forms of electromagnetic radiation have the same wavelength
• All forms of electromagnetic radiation have the same amount of energy in a vacuum

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NGSS.HS-PS4-1

Which of the following colors of the Visible Light Spectrum has the lowest amount of energy?  

• Yellow
• Green
•  Blue
• Orange

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NGSS.MS-PS4-1

A light wave from the sun shines through the atmosphere, into the window of a house, and through a plastic fish tank. In which of the following mediums would the light waves travel the fastest?

•  The air in the atmosphere
• The glass in the window
• The water in the fish tank
• The plastic fish tank  

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