Final 8 SGO 2425

While playing soccer, Kai noticed that the ball eventually stops rolling on the grass. Which of the following is a contact force that causes the ball to stop?

• Magnetism

• Friction

• Gravity

• Electric force

Luna is riding her bicycle down a hill. What type of energy does Luna's bicycle have as it moves?

• Potential Energy

• Kinetic Energy

• Energy that is invisible

• Energy that is always balanced

Jackson is holding a ball at the top of a hill. What is the difference between the potential energy of the ball at the top and its kinetic energy as it rolls down?

• Potential energy is stored, kinetic energy is in motion

• Potential energy is in motion, kinetic energy is stored

• Both are the same

• Both are types of forces

Benjamin pushes a box across the floor. What is the net force?

• The total force acting on an object

• The speed of an object

• The weight of an object

• The color of an object

Isla is observing different forces at play in her environment. Which of the following is a noncontact force?

• Friction

• Tension

• Gravity

• Normal force

What type of energy transformation occurs when a hawk eats a mouse and then uses that energy to fly?

• chemical to mechanical

• mechanical to chemical

• thermal to mechanical

• mechanical to thermal

David wants to find out how much space his new rectangular fish tank will take up. How should he calculate the volume of the tank?

• By measuring its weight

• By using the formula length × width × height

• By counting its sides

• By observing its color

During a game of soccer, Mason kicks the ball. What type of force is Mason applying to the ball?

• A force that acts at a distance

• A force that requires physical contact

• A force that is invisible

• A force that is always balanced

Which of the following shows an energy transformation from chemical energy to electrical to light energy?

• A bolt of lightning lights the night sky.
• A candle glows brightly in the dark.
• A fire in a fireplace lights up a room.
• A battery causes a flashlight to shine.

Energy can be transformed (changed) from one form to another.

• False

• True

Answer explanation

This is TRUE!!

Energy can be TRANSFORMED from one type to another.