Physics Fall Exam 2024: Motion and Forces

A car accelerates uniformly from rest to a speed of 20 m/s in 5 seconds. What is the acceleration of the car?

• 2 m/s²

• 4 m/s²

• 5 m/s²

• 10 m/s²

Tags

NGSS.HS-PS2-1

• 5 units

• 7.07 units

• 10 units

• 25 units

A projectile is launched with an initial velocity of 20 m/s at an angle of 30° above the horizontal. What is the horizontal component of its velocity?

• 10 m/s

• 17.32 m/s

• 20 m/s

• 30 m/s

According to Newton's First Law, an object at rest will remain at rest unless acted upon by:

• A balanced force

• An unbalanced force

• A gravitational force

• A frictional force

A block of mass 10 kg is placed on an inclined plane with an angle of 30° to the horizontal. If the coefficient of static friction is 0.5, what is the maximum static frictional force?

• 42 N

• 98 N

• 25 N

• 50 N

Tags

NGSS.MS-PS2-2

A force of 10 N is applied to a 2 kg object. No other forces act on the object. What is the acceleration of the object according to Newton's Second Law?

• 2 m/s²

• 5 m/s²

• 10 m/s²

• 20 m/s²

Tags

NGSS.MS-PS2-2

A car travels 100 meters in 5 seconds. What is its average speed?

• 10 m/s

• 15 m/s

• 20 m/s

• 25 m/s

Tags

NGSS.MS-PS3-1

• 3

• 4

• 5

• 7

• 1.12 s

• 2.02 s

• 3.45 s

• 4.01 s

Tags

NGSS.HS-PS2-4

Which of the following statements is true according to Newton's First Law?

• An object in motion will stop if no force is applied.

• An object in motion will continue moving at a constant velocity if no net force acts on it.

• An object at rest will start moving if no force is applied.

• An object in motion will accelerate if no force is applied.