Physics final Review

What is the formula for calculating average speed?

• Average Speed = Total Distance / Total Time

• Average Speed = Total Time / Total Distance

• Average Speed = Distance x Time

• Average Speed = Total Distance + Total Time

What is free fall?

• Free fall is the motion of an object under the influence of gravity only, with no air resistance.

• Free fall occurs when an object is thrown upwards against gravity.

• Free fall is when an object moves horizontally at a constant speed.

• Free fall happens when an object is in a vacuum with no gravitational pull.

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What is the law of conservation of energy?

• Energy can be created and destroyed.

• Energy can only be transformed from one form to another.

• Energy is a finite resource that can be depleted.

• Energy can be converted into matter.

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What is average speed?

• Average speed is the total distance traveled divided by the total time taken. It is a scalar quantity.

• Average speed is the maximum speed reached during a journey.

• Average speed is the speed of an object at a specific moment in time.

• Average speed is the total time taken divided by the total distance traveled.

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What is tension in physics?

• Tension is the force exerted by a rope or string when it is pulled tight by forces acting from opposite ends.

• Tension is the force that opposes the motion of an object in a fluid.

• Tension is the weight of an object acting downwards due to gravity.

• Tension is the energy stored in an object when it is compressed.

What is acceleration?

• Acceleration is the rate of change of velocity of an object with respect to time.

• Acceleration is the speed of an object in a given direction.

• Acceleration is the distance traveled by an object in a unit of time.

• Acceleration is the force applied to an object divided by its mass.

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What is potential energy?

• Energy stored in an object due to its position or state.

• Energy that is in motion and can do work.

• Energy that is released during a chemical reaction.

• Energy that is generated from heat sources.

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NGSS.MS-PS3-2

What is the formula for calculating acceleration?

• Acceleration = (Final Velocity + Initial Velocity) / Time

• Acceleration = (Final Velocity - Initial Velocity) / Time

• Acceleration = Final Velocity / Time

• Acceleration = Initial Velocity / Time

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What happens to potential energy as an object falls?

• It increases while kinetic energy decreases.

• It remains constant throughout the fall.

• It decreases while kinetic energy increases.

• It fluctuates randomly during the fall.

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What is a vector quantity?

• A physical quantity that has only magnitude.

• A physical quantity that has both magnitude and direction, such as force or velocity.

• A quantity that can be measured without a unit.

• A quantity that only describes the position of an object.