Integrated Physics and Chemistry Final Exam Practice

Energy of a rock perched on a cliff is an example of...

• gravitational
• elastic
• chemical
• kinetic

Tags

NGSS.HS-PS2-4

NGSS.HS-PS3-2

How do you calculate power?

• P = W/t
• P = E/t
• P = w * t
• P = bbq/chicken

How much work is done by a motor that lifts a train car on El Toro to the top of a 70-meter hill using a force of 15,000 N?

• 1,000,000 J
• 214.29 J
• 1,050,000 J
• 105,000 J

Tags

NGSS.HS-PS2-1

Which combination of fundamental units can be used to express energy? 

• kg * m^2/s 
• kg * m^2/s^2
• kg * m/s
• kg * m/s^2 

A car travels at a constant speed v up a hill from point A to point B. As the car travels from A to B, its gravitational potential energy

• increases and its kinetic energy remains the same
• remains the same and its kinetic energy decreases
• increases and its kinetic energy decreases
• remaines the same and its kinetic energy remains the same. 

Tags

NGSS.HS-PS3-1

While riding a chairlife, a 55 kg skier is raised a vertical distance of 370 m. What is the total change in the skier's gravitational potential energy? 

• 5.4 x 10^1 J 
• 5.4 X 10^2 J
• 2.0 X 10^4 J 
• 2.0 X 10^5 J 

Tags

NGSS.HS-PS2-4

NGSS.HS-PS3-1

 The table below lists the mass and speed of four objects. Which two objects have the same KE? 
Objects    |   Mass   | Speed
A              | 1.0 kg    | 4.0 m/s 
B              | 2.0 kg    | 2 .0 m/s 
C              | 0.5 kg    | 4.0 m/s 
D              | 4.0 kg    | 1.0 m/s 

• A and C
• B and C
• A and D
• B and D 

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Which graph best represents the relationship b/w gravitational PE and its height above the earth?

• 1
• 2
• 3
• 4

Student A lifts a 50. N box from the floor to a height of .40 meter in 2.0 seconds. Student B lifts a 40. N box from the floor to a height of .50 meter in 1.0 second. Compared to student A, student B does

• more work but develops less power
• the same work but develops more power 
• less work but develops more power
• the same work but develops less power 

A 60. kilogram student climbs a ladder a vertical distance of 4.0 meters in 8.0 seconds. Approximately how much total work is done against gravity by the student during the climb?

• 2.4 x 10^3 J
• 3.0 x 10^3 J
• 2.9 x 10^2 J
• 2.4 x 10^2 J

Tags

NGSS.HS-PS2-4