Newton's 1st Law and Force

"An object in motion (or at rest) will to stay in motion (or at rest) until an outside force acts upon it."

• Newton's 1st Law
• Newton's 2nd Law
• Newton's 3rd Law
• Newton's 4th Law

The tendency of an object to resist changes in its motion is...

• inertia
• force
• acceleration
• velocity

Which statement is true about a moving object?
When an object is ....

• ...accelerating, the net force acting on it must be zero
• ... moving at a steady speed, the air resistance acting on it must equal zero
• ... moving at a steady speed, the net force acting on it must equal zero
• ... moving, there must be a net force acting on it.

Tags

NGSS.MS-PS2-2

A wheeled cart is moving to the right at a constant speed.  Two forces of equal magnitude are acting upon the cart. Which of the following best describes the forces and motion of the cart?

• Balanced Forces, Constant Speed
• Balanced Forces, Acceleration
• Unbalanced Forces, Constant Speed
• Unbalanced Forces, Acceleration

Tags

NGSS.MS-PS2-2

Calculate the Net Force. 

• 60N, Left 
• 40N, Right 
• 0N
• 60N, Right

Tags

NGSS.MS-PS2-2

An object at rest will _______ if no outside forces are applied.

• Stay at rest
• Increase Velocity
• Decrease Mass

Tags

NGSS.MS-PS2-2

The SI units for force are...

• Kilograms
• Newtons
• Meters per second
• Pounds

Tags

NGSS.HS-PS2-1

A sled sliding on a flat, icy surface with a constant velocity is best described by

• Newton’s first law of motion for objects at rest.
• Newton’s first law of motion for objects in motion.
• Newton’s second law of motion.
• Newton’s third law of motion.

If a ball of cheese is fired into frictionless space, the amount of force needed to keep it going equals

• twice the force with which it was fired
• the same amount of force with which it was fired
• 1/2 the force with which it was fired
• zero, since no force is requires to keep it moving. 

Tags

NGSS.MS-PS2-2

If lil Wayne, who is an alien, weighs 578 Newtons on Earth and 96 Newtons on the moon, this means that his...

• mass is greater on earth.
• mass is greater on the moon.
• inertia is greater on earth and less on the moon.
• mass is the same on the moon and the earth.

Tags

NGSS.MS-PS2-2