Forces and Changes in Motion

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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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

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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 the force that causes objects to fall to Earth?

• Air resistance
• Gravity
• Water resistance
• Pressure

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Chaz decided to carry out an experiment to separate the components in a mixture. The steps Chaz took are shown in the illustration. What forces did Chaz depend upon to separate the components in this mixture?

• magnetic and electrical forces

• magnetic and gravitational forces

• gravitational and electrical forces

• balanced and unbalanced forces

Cindy decided to rearrange her bedroom by moving her dresser to the opposite wall. She tried pushing it, but found that the dresser would not move.

What force was Cindy NOT able to overcome?

• electrical force

• magnetic force

• balanced force

• frictional force

Are forces applied when the objects involved are in direct contact.

• Contact forces

• Normal forces

• action-at-a-distance forces

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Complete the following statement: The farther away two planets are the _______ the gravitational force between them.

• more
• same
• dosen't matter
• less

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Two factors effecting the magnitude of the force of gravity between 2 objects are...

• mass and distance 
• mass and matter
• distance and weight 
• weight and mass

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