Forces and Newton's First Law Review

Galileo found that a ball rolling down one inclined plane would roll how far up another inclined plane? 

• The ball would not roll up the other plane at all. 
• to nearly the original height
• to nearly twice the original height. 
• to nearly half it original height

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The law of inertia states that on object...

• will continue moving at the same velocity unless na outside force acts on it
• will continue moving in a straight line unless an outside force acts on it
• at rest will stay at rest unless acted on by an outside force
• all of these

After a cannonball is fired into frictionless space, the amount of force needed to keep it going equals

• twice the force with which it was fired
• the same amount of force with which it was fired
• 1/2 the force with which it was fired
• zero, since no force is requires to keep it moving. 

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Name the missing force...

• weight force
• normal force
• applied force
• frictional force

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An object following a straight-line path at a constant speed 

• has zero acceleration
• has no forces acting on it
• has a net force acting in the direction of motion
• none of these

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One object has twice as much mass as another object. The first object also has also twice as much...

• velocity
• gravitational force
• inertia
• all of these

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Compared to its weight on Earth, a 10kg object on the moon is 

• the same
• less
• more
• none of the above

The mass of a lamb that weighs 220N is about 

• 10kg
• 22kg
• 220kg
• 2200kg

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What is the net force on this box?

• 10 N to the right
• 10 N to the left
• 90 N to the left
• 290 N to the left

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What two factors do you use to describe a force?

• speed and mass
• motion and direction
• magnitude and direction
• distance and time