Ch. 7

True or false: You can't exert a force on anything, unless it also exerts a force on you.

• True
• False

When a heavy football player and a light one run into each other, who exerts more force?

• The heavy one
• The light one
• They are equal
• there is no such thing as force

What causes a rocket to lift off and accelerate?

• The rocket is propelled by the impact of exhaust gases against the atmosphere.
• The rocket is propelled by the exhaust gases on the rocket
• Magic

Billy Bob and LuLu each pull very hard on opposite ends of a rope in a game of tug-of-war.  The greatest force on the rope is exerted by.

• Billy Bob
• Lulu
• both are the same
• Billy Bob's imaginary friend, Steve.

As a ball falls, the action force is the pull of the Earth's mass on the ball.  The reaction force is the_____________.

• air resistance acting against the ball
• acceleration of the ball
• nonexistent in this case
• pull of the ball's mass on the Earth

Tags

NGSS.MS-PS2-4

Newton's third law is the law of __________________.

• action and reaction
• inertia
• F=ma
• science rocks

Newton's second law is the law of __________________.

• action and reaction
• inertia
• F=ma
• science rocks

Newton's first law is the law of __________________.

• action and reaction
• inertia
• F=ma
• science rocks

A bus hits a bug and the bug splatters on the windshield, which force is greater?

• The Bus
• The Bug
• They're the same
• Gravity acting on the bus

Tags

NGSS.MS-PS2-1

Newton's third law states that any action will have a(n) _______ and ______ reaction

• Equal and similar
• Equal and opposite
• Equal and different
• Greater and opposite

Tags

NGSS.MS-PS2-1