Chapter 4 Newton's 3 laws of motion

Newton's first law of motion states that

• for every action there is an equal and opposite reaction

• an object in motion will remain in motion unless acted on by an outside force

• Force is equal to mass times acceleration

• an apple will always fall

What is a force?

• A push or a pull on an object

• A push or pull that causes an object to move

• A push or a pull in a single direction

• all of the above

Force is most commonly measured in

• Kilograms

• m/s²

• Kg x m/s²

• Einsteins

Kilograms x meters/seconds square is equal to...

• Dynes

• Weight

• Eisteins

• Newtons

Which of the following is NOT a contact force?

• Friction

• normal force

• Gravity

• Wind

Contact force or Normal force is opposite of .....

• Non-Contact force

• Abnormal force

• Imaginary force

• Gravitational force

If you have a mass of 72 kg, what is your weight?

• 705.6 pounds

• 705.6 Newtons

• 705.6 dynes

• 705.6 pascals

What does Newton's second law of motion state?

• For every action there is an equal an opposite reaction

• An object in motion will stay in motion unless acted on by another object.

• Force is equal to mass times acceleration.

• An apple will fall with the same force as a feather.

Tags

NGSS.HS-PS2-1

What is a net force?

• A force caused by two forces on an object

• A force caused by a net or wire.

• The sum of all forces acting on an object

• The sum of all horizontal forces acting on an object

What is the symbol that represents the sum of all forces?

• epsilon

• alpha

• sigma

• omega