QUIZ 10 NEWTON'S 2ND LAW

What is Newton's 2nd Law?

• Every action has an equal and opposite reaction

• An object at rest stays at rest, an object in motion stays in motion.

• F = ma

• Friction

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

What unit do we measure force in?

• Kilometer/hr

• Joules

• Seconds

• Newtons

What is force?

• A push on an object

• A pull on an object

• A push or pull on an object

Your car has a mass of 2500 kg and a force of 5000 N. How fast will it accelerate? A = F/m

• 20 m/s²

• 0.5 m/s²

• 2 m/s²

• 120 N

A 25 kg bike accelerates at 10 m/s². What was the force? F = m*a

• 250 N

• 2.5 N

• 25 N

• 15 N

True or False. 800 N = 800 kg ⋅ m/s²

• True

• False

What is the equation for Newton's 2nd law?

• a = bc
• F = m/a
• F = ma
• a = b/c

The larger the mass you have the _____ force you need to change its motion.

• more
• less

What does the "F" in F=ma stand for?

• Newton

• Force

• Fahrenheit

• Fast