Newton's Laws

What is Newton's first law?

• An object will change its velocity only if it is in motion.
• An object will accelerate if no forces are acting on it.
• An object will remain at rest or in uniform motion unless acted upon by a net external force.
• An object will remain in motion indefinitely without any forces acting on it.

What is the law of inertia?

• An object will remain at rest unless acted upon by another object.
• The law of inertia states that all objects are in constant motion.
• An object will change its state of motion only if it is in a vacuum.
• The law of inertia is the principle that an object will not change its state of motion unless a force is applied.

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What is inertia?

• Inertia is the force that causes an object to move.
• Inertia is the speed of an object in motion.
• Inertia is the energy stored in an object at rest.
• Inertia is the resistance of an object to changes in its motion.

What is another word for Inertia?

• Momentum
• Force
• Laziness

• Acceleration

What is the definition of mass?

• Mass is the speed of an object.
• Mass is the amount of matter in an object.
• Mass is the volume of an object.
• Mass is the weight of an object.

The more mass an object has, the more inertia it has?

• True

• False

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What is the definition of force?

• Force is an interaction that causes an object to change its motion.
• Force is the distance an object travels.
• Force is the weight of an object.
• Force is the speed of an object.

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What are three common forces on Earth?

• Gravity, friction, air resistance

• Pressure, force, pull

• Electricity, magnetism, push

• Magnetism, friction, force

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How is force measured?

• Force is measured in kilograms (kg) using a scale.
• Force is measured in Joules (J) using a pressure gauge.
• Force is measured in Pascals (Pa) using a thermometer.
• Force is measured in Newtons (N) using a force gauge.

What are balanced forces?

• Balanced forces are forces that always cause motion.
• Balanced forces are unequal forces that cancel each other out.
• Balanced forces are forces that only act on stationary objects.
• Balanced forces are equal and opposite forces that do not cause a change in an object's motion.