TCAP Review Force and Motion

What law of motion does this picture represent?

• Newtons 3rd law

• Newtons 4th law

• Newtons 1st law

• Newtons 2nd law 

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When a bird flies, its wings push air downward. As a result the air pushes back upward on the bird. Which law of motion most applies to the way the wings of a bird beat?

• Every action has an equal and opposite reaction

• The rate of acceleration of an object depends on the amount of force applied.

• Objects in motion tend to remain in motion until acted upon by an another force. 

• Force is defined by mass times acceleration

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Angela blows air into a balloon and holds the end of it closed with her fingers. When she lets go of the end of the balloon, Angela observes that the release of the air propels the balloon.  The propelling of the balloon from the release of the air is an example of which of Newton’s laws? 

• The force of an object is the product of its mass multiplied by its acceleration. 

•  A force of attraction exists between any two objects with mass. 

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

• An object in motion tends to stay in motion unless an unbalanced force acts upon it. 

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As the velocity of an object increases, the momentum:

• increases

• decreases

• stays the same

• there is no momentum

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An object acted upon by a net force will accelerate in the direction of the force according to the equation 
Acceleration = net force/mass

• Newton's 1st Law

• Newton's 2nd Law

• Newton's 3rd Law

• Newton's 4th Law

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Jalen's dog, Sam, loves to ride in the car, but he has a difficult time staying on the seat when the car comes to a sudden stop. Which provides the best scientific reasoning for this?

• Sam does not weigh enough to be able to come to a stop with the car

• Sam likes to jump and look out the window when the car comes to a stop

• Because of inertia, Sam remains in motion even as the car comes to a stop

• Because of displacement, Sam remains in motion even as the cor comes to a stop

When a car suddenly stops at a red light, a pizza lying in the passengers seat flies in to the windshield. Why does the pizza fly forward?

• The pizza loses its backward force

• The pizza's inertia causes it to continue moving. 

• The friction of braking transfers energy to the pizza. 

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Test paper is sitting at rest on your desk. Which of the following statements best describes this situation?

• There are no forces acting on your paper.

• Your paper pushes on the desk only.

• The desk pushes on your paper only.

• The forces acting on the paper are balanced.

A baseball player hits the ball with his bat. Which of the following statements is true about the force of the baseball hitting the bat?

• The baseball hits the bat with an opposite but equal force.

• The baseball hits the bat with an opposite and lesser force.

• The baseball hits the bat with an opposite and double force.

• The baseball hits the bat with an opposite and greater force.

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Which has more Inertia? 

• Truck

• Ant

• A cat

• A skateboard