F1F2 Review 25-26

Newton's Second Law of Motion

• The acceleration of an object depends on the mass of the object and the amount of force applied.

• acceleration in circular motion

• the rate at which velocity changes

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

Tags

NGSS.MS-PS2-2

When the net force is zero

• balanced forces

• unbalanced forces

• net force

• inertia

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-2

A 5 kg block is pulled across a table by a net force of 32 N. Calculate the acceleration of the object.

• 6.4 m/s^2

• 0.156 m/s^2

• 6.4 kg

• 0.156 kg

Tags

NGSS.MS-PS2-2

The masses of four objects are given in this table. If all objects are struck with the same amount of force, which one will have the greatest acceleration?

• object 1

• object 2

• object 3

• object 4

Tags

NGSS.MS-PS2-2

What is the unit for Force?

• Joule

• Newton

• Kilogram(kg)

• Meters per second(m/s)

Evaluate the force-time graph for an object below to make inferences about the velocity of the object. During what time interval are you applying the most force? Assume friction is negligible.

• 1 to 2 seconds

• 2 to 3 seconds

• 3 to 6 seconds

• 6 to 8 seconds

Tags

NGSS.HS-PS2-1

An object slowing down is under the influence of

• Balanced Forces

• Unbalanced Forces

• --

• --

Tags

NGSS.MS-PS2-2

Evaluate the force-time graph for an object below to make inferences about the velocity of the object. During what time intervals is the object moving at a constant speed? Assume friction is negligible.

• 1 to 2 seconds

• 2 to 3 seconds

• 3 to 6 seconds

• 6 to 8 seconds

Tags

NGSS.HS-PS2-1

A phone is sitting on a desk, motionless. Why does that happen?

• There are no forces acting on the object

• The force acting on the object is pushing the phone down so hard it cant move

• The forces acting on the object are balanced

• The phone is moving with unbalanced forces we just cant see them

Tags

NGSS.MS-PS2-2

When Charlie kicks a soccer ball, the force of his kick causes the ball to speed up, but another force causes the ball to slow down, and eventually stop. What is the other force?

• Gravity

• Friction

• The force of Charlie’s kick runs out, causing the ball to slow and stop.

• The soccer ball will not slow down until someone else on Charlie’s soccer team stops the ball.

Tags

NGSS.MS-PS2-2