Contact Forces and Forces at a Distance

1. Gordon is making a list of forces for his science class. Which of the following should Gordon not list as a force?

• Gravity

• Friction

• Push or Pull

• Mass

1. The ball in the diagram below is thrown up into the air and follows the path shown. What causes the ball to follow the path beyond Point B?

• Power

• Gravity

• Electrical Charge

• Magnetic Attraction

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1. Luis rubbed a balloon on his hair and held the balloon next to the wall. He observed the balloon stick to the wall. Which of the following is responsible for the balloon sticking to the wall?

• Gravity

• Friction

• Magnetic Force

• Electrical Force

1. Forces that act at a distance include electrical force and gravitational force. What other type of force acts at a distance?

• Friction

• Contact Force

• Magnetic Force

• Conduction

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What is a Force?

• The distance
• Mass
• A push or pull
• Give me a  failing grade 

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What is the force that causes objects to fall to Earth?

• Air resistance
• Gravity
• Water resistance
• Pressure

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The north pole of one magnet will be attracted to the __________ pole of another magnet.

• east
• north
• south
• west

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What will happen if you try to put the south pole of one magnet and the south pole of another magnet together?

• attract
• repel
• both attract and repel
• neither attract nor repel

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The gravitational force between two objects changes with the distance between the two objects

• True

• False

Which is needed to determine the amount of gravitational force between two objects?

• distance and mass

• weight and time

• area and weight

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