General Physics (Mechanics)

Product of Force and Speed is called

• Work

• Power

• Energy

• Force

What law is also called the law of inertia?

• Newton's First Law

• Newton's Third Law

• Newton's Second Law

• All of them are called Inertia Laws

Energy possessed by an object in motion is called

• Gravitationall Potential Energy

• Kinetic Energy

• Kinematics Energy

• Motion Energy

Tags

NGSS.HS-PS3-2

NGSS.HS-PS3-1

Work is equal to which of the following?

• The relation between force and its direction angle

• The product of time and force

• force divided by time

• The product of force, displacement and the cosine of the angle between them

The work done by friction force is always

• positive

• negative

• zero

• either positive or negative depending on the situation

As defined ny Physics, work is a

• vector quantity

• always a positive quantity

• scalar quantity

• always zero

Two forces have magnitudes of 11 newtons and 5 newtons. The magnitude of their sum could NOT be equal to which of the following values?

• 16 N

• 5 N

• 9 N

• 7 N

A ball leaves a girl's hand with an upward velocity of 6 meters per second. What is the maximum height of the ball above the girl's hand?

(a)  

A boy throws a ball vertically upward with a velocity of 6 meters per second. How long does it take the ball to return to the boy's hand?

(a)  

Tags

NGSS.HS-PS2-1

A certain machine exerts a force of 200 newtons on a box whose mass is 30 kilograms. The machine moves the box a distance of 20 meters along a horizontal floor. What amount of work does the machine do on the box?

(a)  

Tags

NGSS.HS-PS3-2