SCIENCE 4

The ability to do work, or the ability to move or elicit change in matter is the definition of ......................

• Energy

• Force

• Motion

• Speed

................ energy is a form of energy with the ability to make types of light visible to human eyes, so that we can see the things around us

• Heat

• Light

• Sound

• Electrical

Pay attention to this information!

(1) We can use it for communication

(2) It has function for generating electricity

(3) To boil water and fry eggs

(4) It is useful in taking photograph

(5) The warmth from the sun

The correct functions of the heat energy are  ...........................

• 1 and 2

• 1 and 3

• 3 and 5

• 4 and 5

A radio, siren, and a television are all designed to produce _______ energy.

• light energy

• sound energy

• mechanical energy

• electrical energy

Potential energy is the energy that ........................ in an object due to the position

• Movement

• Elastic

• Stayed

• Stored

Which has more potential energy?

• A bird in a tree

• A car in the garage

• An airplane before takeoff

• A child on a swing

Which form of energy is needed by plants to make their own food?

• Heat

• Potential

• Light

• Kinetic

A jeweller needs to melt gold so he can make a ring. Which form of energy does he need?

• Kinetic

• Light

• Elastic Potential Energy

• Heat

What is our main source of LIGHT and HEAT ENERGY?

• Electricity

• Fire

• The Sun

• Batterries

Which of the following energy transformations occur when a lamp that is plugged into a wall socket is functioning correctly?

• Chemical to light
• Electrical to chemical
• Electrical to light
• Chemical to electrical