Physical Science Chapter 2: Investigating Motion

1. If you walked at the rate of 6 km/hr, how far would you walk in ½ hour?

• 3 km
• 6 km
• 9 km
• 12 km

2. When you change your direction of movement, you affect your

• Speed
• Time
• Velocity
• Distance

3. The tendency of an object to stay still is called

• Gravity
• Acceleration
• Inertia
• Force

4. Forces always work

• By themselves
• In pairs
• In lengthy repetitions
• In new combinations

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5. A measure of the force that gravity exerts on an object is

• Mass
• Friction
• Height
• Weight

6. Which two balls have the greatest attraction between them?

• 1 and 2
• 3 and 5
• 3 and 4
• 2 and 5

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7. The set of two balls that has the least attraction between them is

• 3 and 5
• 4 and 5
• 1 and 2
• 1 and 3

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8. A falling object accelerates the closer it gets to Earth because of the force of

• Inertia
• Speed
• Friction
• Gravity

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9. When you rub your hands together, friction makes them

• Cold
• Warm
• Sticky
• dirty

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10. A sled works best on which of these?

• Snow
• Dirt
• Gravel
• Grass