Forces/Motion Review

What is Newton's First Law of Motion?

• An object at rest stays at rest, and an object in motion stays in motion unless acted upon by an unbalanced force.

• An object will accelerate in the direction of the net force acting on it.

• For every action, there is an equal and opposite reaction.

• An object in motion will eventually come to a stop without any external force.

What is an example of Newton's First Law in everyday life?

• A book on a table remains at rest until someone pushes it.

• A ball rolls down a hill when pushed.

• A car accelerates when the driver presses the gas pedal.

• A person slides on ice without stopping.

Liam is an astronaut on a space mission. How does Newton's First Law apply to his space travel?

• In space, without friction or air resistance, an object will continue moving indefinitely unless acted upon by a force.

• Objects in space will eventually stop due to gravity.

• In space, objects can only move if they are pushed by a rocket.

• Newton's First Law does not apply in the vacuum of space.

How does mass relate to inertia?

• Objects with greater mass have greater inertia.

• Inertia is independent of mass.

• Objects with less mass have greater inertia.

• Inertia increases with speed, not mass.

What is inertia?

• Inertia is the tendency of an object to resist changes in its state of motion.

• Inertia is the force that causes an object to accelerate.

• Inertia is the measure of an object's mass.

• Inertia is the energy possessed by a moving object.

Arjun is pushing a shopping cart at the grocery store. What kind of objects have inertia?

• Only living organisms

• All objects with mass

• Only large objects

• Only objects in motion

David is driving his car and suddenly applies the brakes. Which of Newton's Laws of motion best explains why David should buckle up?

• 1st law of motion

• 2nd law of motion

• 3rd law of motion

• Uniform circular motion

If you blow up a balloon and then release it, the balloon will fly away. Which of the following laws of motion governs this situation?

• 1st law of motion

• 2nd law of motion

• 3rd law of motion

• Uniform circular motion

When Grace uses a hammer to exert a force on the nail, the nail _________________________________________.

• exerts a smaller amount of force back onto the hammer

• exerts a larger amount of force back onto the hammer

• exerts the same amount of force back onto the hammer

• cries and cries and cries

Tags

NGSS.MS-PS2-1

Elijah hits a baseball with a bat with a force of 100 Newtons. What is the force and direction exerted by the baseball on the bat?

• 100 Newtons, same direction

• 100 Newtons, opposite direction

• 200 Newtons, same direction

• 200 Newtons, opposite direction

Tags

NGSS.MS-PS2-1