Types of Forces Common Assessment

Rina’s mother asked her to help move some items from the hall closet to the garage. One item she wanted to move was a large box of old school books. Rina tried to lift the box, but could not pick it up. What force was Rina NOT able to overcome?

• frictional force

• electrical force

• gravitational force

• magnetic force

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Look at the illustration below of a block sitting on a table-top. The magnified view illustrates a force that exists between the two objects. Which type of force is demonstrated in the magnified view?

• Electrical force

• Frictional Force

• Magnetic Force

• No force

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NGSS.MS-PS2-5

The illustration below shows what happened when a balloon touched a girl’s hair. Which type of force caused the girl’s hair to cling to the balloon?

• gravitational force

• electrical force

• magnetic force

• frictional force

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Sasha keeps her pet snake in an aquarium. Sasha has just completed an investigation to test how the strength of the light bulb she uses in the aquarium affects how much the snake eats. Which of the following procedures would be a repetition of Sasha’s investigation?

• Sasha repeats the investigation following the same steps as her initial investigation.

• Sasha repeats the investigation using stronger light bulbs.

• Sasha repeats the investigation using an additional snake in the cage.

• Marcus repeats the investigation following the same steps as Sasha’s initial investigation.

After walking across a carpeted floor in socks, Jim brings his finger near a metal doorknob and receives a shock. What does this demonstrate?

• Frictional forces requires direct contact

• Electrical forces require direct contact

• Electrical forces can act at a distance

• Frictional forces can act a distance

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Jupiter has about 317 times more mass than Earth. What can you infer from this fact?

• That Jupiter's gravitational force is much weaker than on Earth's gravitational force

• That Jupiter's gravitational force is much stronger than Earth's gravitational force

• That Jupiter's and Earth's gravitational forces are equal

• Mass has no effect on the gravitational force between two objects

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Contact forces are forces that require objects to be in direct contact (touching). Which of the following is NOT an example of a contact force?

• Magnetism

• Friction

• Tension

• Applied Force

Non-contact forces are forces that do not require objects to touch in order to affect the object. Non-contact forces act using a “field” of influence. Which of the following is NOT an example of non-contact force?

• Gravity

• Friction

• Electrical Forces

• Magnetism

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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 spin the boards in opposite directions

• It will pull the boards toward each other

• It will sag between the two boards

• It will hold the boards steady

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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?

• Gravity caused the ball to roll down the hill, but frictional force 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.

• Magnetic force caused the ball to roll down the hill, but gravity caused the ball to slow down and stop

• Frictional force caused the ball to roll down the hill, but air resistance caused the ball to slow down and stop.

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