Baby's Final Review

A 200 g block of metal at 150°C is placed into 200 g of water at 25°C. The final temperature of the system is 35°C. If the specific heat of water is 1 cal/g°C, what is the specific heat of the metal? Hint:some problems might say what ΔT is and some problems might require you to calculate ΔT to solve the problem.

• 0.087 cal/g°C
• 0.25 cal/g°C
• 0.1 cal/g°C
• 0.5 cal/g°C

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-4

A gummy bear sinks to the bottom of a 25 cm deep container filled with honey. The density of honey is approximately 1420 kg/m³. What is the absolute pressure on the gummy bear at the bottom of the container? standard atmospheric pressure =101,325 Pascals and gravity =9.8

• 95000 Pa
• 120000 Pa
• 104806 Pa
• 101325 Pa

___________________ is the type of heat transfer that occurs in fluids, such as warm air rising and cold air sinking; creating wind.

• Convection
• Conduction
• Radiation
• insulation.

Tags

NGSS.HS-ESS2-3

When you use a microwave, what is the main way that heat is transferred?

• Convection
• Conduction
• Radiation
• insulation.

Tags

NGSS.HS-PS3-4

NGSS.HS-PS4-3

The amount of thermal energy required to raise the temperature of one (1) kilogram of a substance by 1^o C is known as:

• Specific heat
• Heat of fusion
• Heat of vaporization
• Melting point

Tags

NGSS.HS-PS3-2

NGSS.HS-PS3-4

A hydraulic lift has a small piston with an area of 0.6 m² and a large piston with an area of 2.4 m². If a force of 200 N is applied to the small piston, what is the maximum weight (in newtons) that can be lifted by the large piston?

• 400 N
• 600 N
• 1000 N
• 800 N

Tags

NGSS.MS-PS2-2

A hydraulic jack has a small circular piston with a diameter of 1.0 m and a large square piston with side length 2.0 m. A force of 150 N is applied to the small piston.

(a) What is the area of the small piston?

• 0.785 m²
• 1.0 m²
• 3.14 m²
• 0.5 m²

A hydraulic jack has a small circular piston with a diameter of 1.0 m and a large square piston with side length 2.0 m. A force of 150 N is applied to the small piston.
(b) What is the area of the large piston?

• 3.0 m²
• 1.0 m²
• 4.0 m²
• 2.0 m²

A hydraulic jack has a small circular piston with a diameter of 1.0 m and a large square piston with side length 2.0 m. A force of 150 N is applied to the small piston.
(c) Using these areas, what is the maximum weight (in newtons) that can be lifted by the large piston?

• 500 N
• 764.4 N
• 1000 N
• 300 N

Tags

NGSS.HS-PS2-1

A cube-shaped container with a side length of 2 meters contains 3 moles of an ideal gas at a temperature of 300 K. What is the pressure inside the container?

• 500 Pa
• 935.33 Pa
• 1200 Pa
• 800 Pa