Physics TEKS 7.B & 7.C - Energy Transformations

Multiple Choice

What are the key learning objectives related to energy transformations?

• Investigate mechanical energy

• Apply conservation of energy

• Master thermal energy

• Calculate gravitational potential energy

Multiple Choice

What is the formula for Kinetic Energy?

• KE = mv

• KE = 1/2 mv^2

• KE = mgh

• KE = 1/2 mv

Multiple Choice

What happens to potential energy (PE) and kinetic energy (KE) at the highest point of a roller coaster?

• PE is maximum, KE is minimum

• PE is minimum, KE is maximum

• PE and KE are both maximum

• PE and KE are both minimum

Multiple Choice

Each of the boxes shown is pulled for 10 m across a level, frictionless floor by the force given. Which box experiences the greatest change in its kinetic energy?

• A

• B

• C

• D

• E

Multiple Choice

What happens to mechanical energy in the presence of non-conservative forces like friction and air resistance?

• It is destroyed

• It transforms into thermal energy

• It remains unchanged

• It increases

Multiple Choice

A 2 kg rock is dropped from a height of 20 m. Assuming no air resistance, calculate the velocity of the rock just before it hits the ground. What is the velocity?

• 9.8 m/s

• 19.8 m/s

• 29.8 m/s

• 39.8 m/s

Multiple Choice

A pendulum swings from its highest point to its lowest point. If its speed at the lowest point is 4 m/s and its mass is 2 kg, what is its kinetic energy at the lowest point?

• 8 J

• 16 J

• 32 J

• 64 J

Multiple Choice

What is the significance of the high-speed car in the image?

• Speed and performance

• Safety features

• Fuel efficiency

• Design aesthetics

Multiple Choice

What type of ride is depicted in the image?

• Roller coaster

• Ferris wheel

• Bumper cars

• Carousel

Multiple Choice

What is the main theme of the video shown in the image?

• Extreme sports

• Nature documentaries

• Travel vlogs

• Cooking shows

Multiple Choice

What technique is the young skier using to navigate the slope?

• Snowboarding

• Skiing

• Ice skating

• Surfing

Multiple Choice

What is the concept illustrated in the image related to quantum energy?

• Quantum teleportation

• Quantum entanglement

• Quantum computing

• Quantum mechanics

Poll

How confident do you feel about this topic now?

• Very confident
• Somewhat confident
• Not confident