Motion and Forces Gravity

How is gravity affected by mass?

• the larger the mass of the object, the greater the gravity
• small objects have no gravity
• gravity is not affected by mass of objects, whether large or small

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What is a force that opposes motion between two surfaces?

• friction
• acceleration
• velocity
• motion

What is the difference between mass and weight?

• mass is how much matter is in an object, and weight is the gravitational pull on that object
• mass and weight are the same
• weight affects how much mass is in an object
• weight is determined by how many atoms make up an object

What slows down the motion of an object or keeps it from starting?

• mass
• friction
• gravity
• magnetism

What are two examples of forces?

• Art and Music
• A push or pull
• A stand or ground
• The dark side and the light side

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What is motion?

• It's like the ocean
• Any change in an animal or person's position.
• Motion is like acting
• Any change in an object or person's position.

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What does force allow a ball player to do?

• To swing a baseball bat and hit a ball in a same direction
• To swing a baseball bat and drop a ball in a new direction
• To swing a baseball raquet and hit a ball in a new direction
• To swing a baseball bat and hit a ball in a new direction

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What pulls a ball back to earth?

• Gas
• Gravity
• Friction
• Molecules

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Why does a rolling ball stop?

• Gravity
• Friction
• Waterfalls
• Sand

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The picture of the position vs. time graph shows an object that is...

• accelerating/speeding up
• moving at a constant speed 
• not moving 
• accelerating/slowing down. 

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