Force and Motion

How do we measure force?

• Newtons (N)
• Kilograms (kg)
• Meters (m)
• Liters (L)

What is Newton's first law of motion?

• The force of an object is equal to its mass times its acceleration.
• The acceleration of an object depends on its mass and the amount of force applied.
• For every action, there is an equal and opposite reaction.
• An object at rest stays at rest, an object in motion stays in motion unless acted upon by an external force.

What is force?

• The color of an object.
• The speed of an object.
• A push or pull that can change the motion of an object.
• The shape of an object.

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What is Newton's third law of motion?

• For every action, there is an equal and opposite reaction.
• The force of an object is equal to its mass times its acceleration.
• An object at rest will stay at rest, and an object in motion will stay in motion unless acted upon by an external force.
• The acceleration of an object depends on its mass and the amount of force applied.

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Which of the following is NOT an effect of force on an object?

• Decreasing speed
• Changing direction
• Stopping movement
• Starting to move

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What is the formula for Newton's second law of motion?

• Acceleration = force × mass
• Force = mass + acceleration
• Force = mass × acceleration
• Mass = force × acceleration

What is the role of inertia in Newton's first law of motion?

• To change an object's direction.
• To increase an object's speed.
• To cause an object to move.
• To resist changes in an object's motion.

Which of the following is NOT a unit of measurement for force?

• Liters (L)
• Newtons (N)
• Meters (m)
• Kilograms (kg)

Which of the following is an example of Newton's third law of motion?

• A balloon moving forward when air rushes out in the opposite direction.
• A ball rolling down a hill.
• A car accelerating on a straight road.
• A book falling off a table.

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What is the relationship between force and motion?

• Force causes motion.
• Motion causes force.
• Force and motion are the same thing.
• Force and motion are unrelated.

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