Newton's Second Law

Multiple Choice

Which of the following is Newton's 2nd law?

• For every action there is an equal an opposite reaction

• Force = mass x acceleration

• An object at rest stays at rest

Multiple Choice

Newton’s 2nd Law of Motion informs us that force is the product of mass and acceleration.

• True

• False

Multiple Choice

Which force produces a change in motion?

• Unbalanced force
• Balanced force
• Gravitational force
• Frictional force

Multiple Choice

How do you make an object accelerate?

• by applying a force

• it only accelerates if it is moving

• by adding more mass to the object

Multiple Choice

45 meters per second squared is the--

• Acceleration

• Mass

• Weight

• Force

Multiple Choice

The acceleration of an object is:

• directly proportional to the amount of force

• indirectly proportional to the amount of force

Multiple Choice

The acceleration of an object is:

• inversely related to the object's mass

• directly related to the object's mass.

Multiple Choice

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

Multiple Choice

Solving for acceleration is easy. Simply divide the mass by the force. True or False?

• True

• False

Multiple Choice

What is the standard unit force is measured in?

• Newton
• Gram
• Pound
• Meter

Multiple Choice

What is net force?

• the sum of all the forces acting on an object

• the single main force acting on an object

Multiple Choice

Newton’s 2nd Law of Motion informs us that force is the product of mass and acceleration.

• True

• False

Multiple Choice

1000 kg is the -----

• Force
• Mass
• Acceleration
• Weight

Multiple Choice

The greater the mass, the greater the force required to increase an object's acceleration.

• True

• False

Multiple Choice

The greater the mass, the greater the force required to increase its acceleration. Eg: 20 kg is easier to accelerate than 30 kg. True or False?

• True

• False

Multiple Choice

Is this problem solved correctly?

Find the force of a 20 kg mass accelerating at 30 m/s2.

F =m x a

F = 20 kg x 30 m/s²

F = 6N

• No force should be 60 N

• Yes this is correct

• No force should be 600 N

Multiple Choice

Football A has a greater mass than football B. Which football will have greater acceleration when both are thrown with the same force in the same direction?

• Football A

• Football B

• They will have the same acceleration

• Mass has no effect on acceleration

Multiple Choice

Will it take more force to push an empty shopping cart or a shopping cart that is full?

• The empty shopping cart
• The full shopping cart
• They will take the same amount of force

Multiple Choice

If the man pushes with an equal amount of force, which object will accelerate more?

• Car because it has more mass

• Lawnmower because it has less mass

• Car because it has less mass

• Lawnmower because it has more mass