Force Newtons Laws Electromagnetism

If the forces acting on a object are BALANCED then the object...

• Is moving at a constant acceleration
• Is moving at a constant velocity or at rest
• Is at rest
• has decreasing velocity

Tags

NGSS.HS-PS2-2

What is the net force (weight) of a rock sitting on the ground that has a mass of 10kg?
w=mass x acceleration

• 98 J
• 98 kg
• 98 N
• Not enough information to answer question

Tags

NGSS.MS-PS2-4

What are the action/reaction forces of a person jumping off a diving board into the water

• going up in the air and falling
• pushing down on the diving board and the board pushing on feet
• going into the water and splashing
• going forward through the air and belly flopping

Tags

NGSS.MS-PS2-1

Unbalanced forces cause an object to _____.

• remain motionless
• move at constant velocity
• speed up, slow down, or change direction

Tags

NGSS.MS-PS2-2

Newton's First Law of Motion is also known as the Law of _____.

• Inertia
• Conservation of Mass
• Action and Reaction
• Mass and Acceleration

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

• stubbornness
• momentum
• inertia
• laziness

Tags

NGSS.HS-PS2-3

TRUE or FALSE: If you wish to speed up, slow down, or change direction in your car, you need to apply an UNBALANCED force to the car.

• TRUE
• FALSE

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

A rocket accelerating upward from a launch pad is an example of _____.

• balanced forces
• unbalanced forces
• zero forces

Tags

NGSS.MS-PS2-2

According to Newton's Second Law, an object's acceleration is INVERSELY proportional to its _____ with a given force.

• unbalanced force
• balanced force
• mass
• velocity

Tags

NGSS.MS-PS2-2

If a baseball and a cannonball are dropped from the same height at the same time, which ball will hit the ground first?

• the cannonball
• the baseball
• The balls land at the same time.
• the ball with the larger volume

Tags

NGSS.MS-PS2-4