Newtons Third Law Of Motion

1. For every action, there is an equal and opposite reaction.

True

False

This statement is based on Newton's third law of motion, which states that for every action, there is an equal and opposite reaction. This means that whenever an object exerts a force on another object, the second object exerts a force of equal magnitude but in the opposite direction on the first object. This principle applies to all types of forces, whether they are contact forces or forces acting at a distance. Therefore, the correct answer is true.

Explanation

This statement is based on Newton's third law of motion, which states that for every action, there is an equal and opposite reaction. This means that whenever an object exerts a force on another object, the second object exerts a force of equal magnitude but in the opposite direction on the first object. This principle applies to all types of forces, whether they are contact forces or forces acting at a distance. Therefore, the correct answer is true.

2. According to Newton's third law, for every action force there is an equal (in size) and opposite (in direction) reaction force. Forces always come in pairs - known as "action-reaction force pairs."

True

False

Newton's third law states that for every action force, there is an equal and opposite reaction force. This means that whenever an object exerts a force on another object, the second object exerts a force of equal magnitude but in the opposite direction on the first object. These forces always come in pairs, known as action-reaction force pairs. Therefore, the statement "True" is correct.

Explanation

Newton's third law states that for every action force, there is an equal and opposite reaction force. This means that whenever an object exerts a force on another object, the second object exerts a force of equal magnitude but in the opposite direction on the first object. These forces always come in pairs, known as action-reaction force pairs. Therefore, the statement "True" is correct.

3. Johnny hits sally with a kickball while playing dodgeball in gym class. The momentum that he hits her with is the same amount of momentum that the ball has when it bounces off sally... In other words, no momentum was lost in the reaction.

True

False

According to the law of conservation of momentum, the total momentum before a collision is equal to the total momentum after the collision, provided no external forces act on the system. In this scenario, Johnny hits Sally with a kickball, and the momentum he imparts to Sally is the same as the momentum of the ball when it bounces off her. This implies that the total momentum before and after the collision remains the same, indicating that no momentum was lost in the reaction. Therefore, the statement is true.

Explanation

According to the law of conservation of momentum, the total momentum before a collision is equal to the total momentum after the collision, provided no external forces act on the system. In this scenario, Johnny hits Sally with a kickball, and the momentum he imparts to Sally is the same as the momentum of the ball when it bounces off her. This implies that the total momentum before and after the collision remains the same, indicating that no momentum was lost in the reaction. Therefore, the statement is true.

4.

Describe the other force in the action-reaction force pair.

Pin pushes bowling ball rightward.

Pin pushes bowling ball upward.

Pin pushes bowling ball downward.

None of the above.

The other force in the action-reaction force pair is the force exerted by the bowling ball on the pin, pushing it leftward. According to Newton's third law of motion, for every action, there is an equal and opposite reaction. Therefore, when the pin pushes the bowling ball rightward, the bowling ball exerts an equal and opposite force on the pin, pushing it leftward.

Explanation

The other force in the action-reaction force pair is the force exerted by the bowling ball on the pin, pushing it leftward. According to Newton's third law of motion, for every action, there is an equal and opposite reaction. Therefore, when the pin pushes the bowling ball rightward, the bowling ball exerts an equal and opposite force on the pin, pushing it leftward.

5. Describe the other force in the action-reaction force pair.

The glove pushes the baseball rightward.

The glove pushes the baseball upward.

The glove pushes the baseball downward.

None of the above.

The other force in the action-reaction force pair is the baseball pushing the glove leftward. According to Newton's third law of motion, for every action, there is an equal and opposite reaction. Therefore, when the glove pushes the baseball rightward, the baseball exerts an equal and opposite force on the glove, pushing it leftward.

Explanation

The other force in the action-reaction force pair is the baseball pushing the glove leftward. According to Newton's third law of motion, for every action, there is an equal and opposite reaction. Therefore, when the glove pushes the baseball rightward, the baseball exerts an equal and opposite force on the glove, pushing it leftward.

6. Describe the other force in the action-reaction force pair.

Balloon wall pushes enclosed air particles inwards.

Balloon wall pushes enclosed air particles outwards.

Balloon wall pushes enclosed air particles upwards.

None of the above.

The correct answer is "Balloon wall pushes enclosed air particles inwards." When the balloon wall is pushed inwards, it exerts a force on the air particles inside the balloon, causing them to move in the opposite direction, which is inward as well. This is an example of Newton's third law of motion, which states that for every action, there is an equal and opposite reaction.

Explanation

The correct answer is "Balloon wall pushes enclosed air particles inwards." When the balloon wall is pushed inwards, it exerts a force on the air particles inside the balloon, causing them to move in the opposite direction, which is inward as well. This is an example of Newton's third law of motion, which states that for every action, there is an equal and opposite reaction.

7. Knowing Newton's Third Law of Motion and the Law of Conservation of Momentum, would you rather ride in a modern car that is light and small but has lots of safety standards built in or a big, heavy older car that lacks some of the safety standards (remember the collision video)?

Newer car with safety standards because they are built to withstand the momentum of the collison.

Newer car with safety standards because the gas mileage is better so less chance to get into an accident.

The correct answer is the newer car with safety standards because they are built to withstand the momentum of the collision. This is based on Newton's Third Law of Motion, which states that for every action, there is an equal and opposite reaction. In a collision, the force exerted on the car will be equal to the force exerted on the object it collides with. The safety standards in the newer car are designed to absorb and distribute this force, reducing the impact on the passengers and increasing their chances of survival.

Explanation

The correct answer is the newer car with safety standards because they are built to withstand the momentum of the collision. This is based on Newton's Third Law of Motion, which states that for every action, there is an equal and opposite reaction. In a collision, the force exerted on the car will be equal to the force exerted on the object it collides with. The safety standards in the newer car are designed to absorb and distribute this force, reducing the impact on the passengers and increasing their chances of survival.

8. Momentum is not always conserved - some could be lost in the system.

True

False

According to the principle of conservation of momentum, the total momentum of a closed system remains constant if there are no external forces acting on it. This means that momentum is always conserved unless there are external forces present. Therefore, the statement that momentum is not always conserved and could be lost in the system is incorrect. Therefore, the correct answer is False.

Explanation

According to the principle of conservation of momentum, the total momentum of a closed system remains constant if there are no external forces acting on it. This means that momentum is always conserved unless there are external forces present. Therefore, the statement that momentum is not always conserved and could be lost in the system is incorrect. Therefore, the correct answer is False.

9. The Law of Conservation of Momentum states that

All the momentum in a system before a reaction is greater than the momentum after a reaction.

All the momentum in a system before a reaction is less than the momentum after a reaction.

All the momentum in a system before the reaction is the same as all the momentum after the reaction.

The Law of Conservation of Momentum states that the total momentum of a closed system remains constant before and after a reaction. This means that the sum of the momentum of all objects involved in the reaction before the reaction is equal to the sum of their momentum after the reaction. In other words, momentum is conserved and not lost or gained during the reaction.

Explanation

The Law of Conservation of Momentum states that the total momentum of a closed system remains constant before and after a reaction. This means that the sum of the momentum of all objects involved in the reaction before the reaction is equal to the sum of their momentum after the reaction. In other words, momentum is conserved and not lost or gained during the reaction.

10. According to Newton's third law,The acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object.

True

False

This is actually Newton's 2nd Law of Motion.

Explanation

This is actually Newton's 2nd Law of Motion.