Forces and Motion Quiz

The image above shows two opposite forces acting on a rolling cart, what can we say is true about the affect of the forces on the cart?

• A)It cannot be determined without knowing which man is stronger.

• B)It cannot be determined because one man is taller than the other.

• C)The forces are unbalanced, and net force on the cart moves it to the left.

• D)The forces are unbalanced, and net force on the cart moves it to the right.

Sonny and Manuel had to set up a demonstration to model one of Newton's laws. This is a photo of their demonstration. When Manuel hit the index card with his finger, the penny fell into the cup. Their demonstration modeled Newton's

• A)first law of motion.

• B)second law of motion.

• C)third law of motion.

• D)fourth law of motion.

A wheelbarrow is experiencing two forces. One is pushing 5 N to the east and the other 5 N in the exact opposite direction. What must be true of the wheelbarrow's motion?

• A)It is moving.

• B)It is accelerating.

• C)It is slowing down.

• D)It isn't accelerating.

Newton's second law states that F = m x a (Force is mass times acceleration). Which example would have the GREATEST acceleration?

• A)a 10 kg ball thrown with a 50 Newton force

• B)a 1 kg ball thrown with a 0.5 Newton force

• C)a 50 kg student launched by a 100 Newton catapult

• D)a 500 kg car accelerated by 1000 Newtons from the engine

Joe is the best baseball player in the world. He can throw a baseball faster than anyone. If the mass of the baseball was increased by 50%, but he applied the same force as he did to a lighter baseball, which of these would best describe Joe's attitude?

• A)Joe would love to use the new ball in future baseball games.

• B)Joe would be happy as the new ball would have a faster acceleration.

• C)Joe would be unhappy as the new ball would have a slower acceleration.

• D)Joe's attitude would not change as there would be no change in the acceleration.

If you know the amount of the unbalanced force acting upon an object and the mass of the object, using Newton's 2nd Law what could you calculate about the object?

• A)acceleration

• B)friction

• C)inertia

• D)velocity

Which of the blocks above has balanced forces acting on it?

• A
• B
• C
• D

Tags

NGSS.MS-PS2-2

which box has more acceleration?

• top

• bottom

what is the correct formula for force?

• F=ma

• $F=\frac{m}{a}$

• $F=\frac{a}{m}$

• $F=a\times v$

What is Newton's Third Law?

• Object in motion stays in motion and an object at rest stays at rest unless acted on by a outside force
• Force = mass x acceleration
• For every action there is an equal and opposite reaction

Tags

NGSS.MS-PS2-1