Midterm 2024 8th grade

Front

What happens to the kinetic energy of two objects when they collide and stick together?

Back

It is transferred to other forms of energy

Front

If a 10 kg object experiences a force of 50 N, what is its acceleration?

Back

10 m/s²

Front

A 2,000 kg truck and a 500 kg car experience the same force. Which one will have the greatest acceleration?

Back

The car

Front

Example of a magnetic force:

Back

A magnet attracting a paperclip

Front

What is the main factor that determines the kinetic energy of an object?

Back

Speed of the object

Front

A 1,000 kg car is moving at 20 m/s. What is its kinetic energy?

Back

800,000 J

Front

Potential energy

Back

Energy stored due to an object's position

Front

If an object is placed higher above the ground, which type of energy increases?

Back

Gravitational potential energy

Front

Example of heat transfer by conduction:

Back

A metal spoon heating up in a pot of soup

Front

Which material is the best conductor of heat?

Back

Metal