Force and Motion

A change in an object's position, direction or location

• Position

• Force

• Motion

• Inertia

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What is force?

• a push or a pull

• motion

• acceleration

• interaction

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Equal forces that do not cause a change in an objects motion

• Unbalance force

• Push or a pull

• Balanced force

• Average speed

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Are unequal forces that cause a change in the motion of an object

• Balanced forces

• Unbalanced forces

• Inertia

• Gravity

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The toy car and ramp seen above might be used to answer which testable question?

• A. What material is the ramp made of?

• B. Which toy car looks the best?

• C What effect does gravity have on a toy car?

• D. What metal makes the best toy cars?

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2. By changing the surface over which the car rolls from sandpaper to wax paper, you might be able to test the effect of what force?

• A. Magnetism

• B. Wind

• C. Wind

• D. Friction

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3. Which two tools below would be most useful in testing how the mass of an object can affect the distance it moves with a push?

• A. Spring scale and hot plate

• B. Balance and meter stick

• C. Graduated Cylinder and beaker

• D. Magnet and thermometer

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How might you test the strength of several different types of magnets?

• F. Submerge each magnet in water

• F. Submerge each magnet in acid

• H. Find the mass of each magnet

• J. Measure the attraction force of each magnet

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5. An experiment is conducted to measure the amount of force required to push a square cardboard box from one side of the room to the other side. What variable is likely to lessen the force required?

• A. Adding several heavy weights to the box

• B. Tipping the box onto its side

• C. Adding another box on top

• D. Placing the box onto a wheeled cart

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7. A ball is sitting loose in the moving wagon pictured below. If the wagon stops suddenly, the ball will

• A. stop immediately with the wagon

• B. roll forward in the wagon and fall off

• C. both the wagon and the ball will crash

• D. stay exactly where it is

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