Newton's Laws

According to Newton's second law, if you increase the force applied to an object :

• it accelerates more
• it doesn't move
• you get more inertia
• it decelerates

According to Newton’s first law of motion, a moving object that is not acted on by an unbalanced force will

• remain in motion.
• eventually come to a stop.
• change its momentum.
• accelerate.

What law?

• 1st
• 2nd
• 3rd

A magician pulls a tablecloth out from under dishes and glasses on a table without disturbing them.

• Newton's 1st Law
• Newton's 2nd Law
• Newton's 3rd Law

Who discovered the laws of motion and gravity?

• Galileo Galilei

• Johannes Kepler

• Albert Einstein

• Isaac Newton

What does Newton's first law state when there is no force acting on an object?

• The object changes direction

• The object remains at rest

• The object moves at a constant speed

• The object accelerates

What is needed to change the speed or direction of a spacecraft in space?

• Momentum

• Gravity

• Thrust

• Friction

What is the effect of applying more force to an object according to Newton's second law?

• The object slows down

• The object decreases in mass

• The object accelerates more

• The object stops moving

According to Newton's third law, what is the direction of the reaction force applied to an object?

• The reaction is at an angle

• There is no reaction

• The reaction is in the opposite direction

• The reaction is in the same direction

According to Newton's third law, what is the direction of the reaction force applied to an object?

• The reaction is at an angle

• There is no reaction

• The reaction is in the opposite direction

• The reaction is in the same direction