A device that is used to measure atmospheric pressure is a___________.

A device that is used to measure liquid pressure is a___________.

______ is a term used to describe a moving object, and it is expressed as a product of mass and velocity.

______ is the product of mass and acceleration.

______ is the quotient of Work divided by the time. It is defined as the rate or doing work.

The Gravitational force between to objects is proportional to the product of their ______________ and inversely proportional to the square of their ______.

As the moon revolves around a planet in an elliptical orbit, at which position is the moon traveling slowest?

Kepler's First Law of Planetary Motion states that the planetrevolves around the sun in _______ orbit. 

A 1 kg body whirled at a constant speed of 5.0 m/s around a horizontal circular track is accelerated _____________.

A 1 kg body whirled at a constant speed of 5.0 m/s around a horizontal circular track is accelerated _____________.

A 1 kg body whirled at a constant speed of 5.0 m/s around a horizontal circular track with a radius of 2 meters is accelerated at _____________.

Hint: The Formula is a_c = $$\frac{v^2}{r}$$   and Fc = ma

A 4 kg body whirled at a constant speed of 5.0 m/s around a horizontal circular track with a radius of 2 meters is acted by a centripetal force of _____________.

Hint: The Formula is a_c = $$\frac{v^2}{r}$$   and Fc = ma

A 1200.0 kg car is moving at a rate of 30.0 m/s. What is the momentum of the Car?

In a frictionless environment, the total mechanical energy of swinging pendulum, is constant. That is ME = PE + KE = Contant

At which point is the KE maximum?

In a frictionless environment, the total mechanical energy of swinging pendulum, is constant. That is ME = PE + KE = Contant

At which point is the PE maximum?

If the car and the truck are moving at the same speed, the truck has more momentum because _______

If the car and the truck are moving at the same speed, the truck has more power because _______

In the figure, the 3 solids are immerse in water(the medium). Which has the least density among them?

In the figure, the 3 solids are immerse in water(the medium). Which has the same density with water?

In the figure, the 3 solids are immerse in water(the medium). Which has the greatest density among them?

In figure C, what is the volume of the solid?

Hint: Density of water is 1 kg/L or 1 g/ ml or 1 g/cc , 1 Liter = 1000 cc

In the figure, the main cause of the circulation of air is ________.

In the figure, the main source of energy of the typhoon is the ________.

In a submarine, its average density can be increased or decreased by filling the ballast tank with water. The submarine sinks if its average density is __________________.