Science

5G Final Test Revision

Atom

• Photons are the positive charge of an atom

• Electrons are the negative charge of an atom

Multiple Choice

Which particles in an atom are positively charged?

• protons

• electrons

Multiple Choice

A combination of two or more elements is called a(an) ___.

• molecule

• solution

• compound

Conductors and Insulators

• Metals can conduct heat and electricity well

• Non metals are great insulators they protect us from heat

Poll

Metals are good conductors of ____.

• Electricity

• Water

• Heat

• Power

Multiple Choice

Which material is an insulator?

• Wood

• Copper

• Gold

Multiple Choice

Which object is a conductor?

• Pencil

• Plastic bag

• Knife

Force

• Forces that are equal are known as balanced forces

• Forces that are not equal with each other are called unbalanced forces.

• A force is a push or pull.

• Friction slows down the motion of an object.

Multiple Choice

Which force is shown in the picture?

• balanced

• unbalanced

• friction

Multiple Choice

Which force is shown in the picture?

• balanced

• unbalanced

• friction

Multiple Choice

What's the force that slows down motion?

• balanced

• unbalanced

• friction

Motion,Position,Velocity

• When you describe the location of an object you describe its position.

• The change of the position of an object is called motion.

• Velocity is the measurement of an objects speed and direction.

Multiple Choice

The location of an object is described as it's ___.

• motion

• velocity

• position

Multiple Choice

When an object is moving or changing position it's called ___.

• position

• motion

• velocity

Multiple Choice

The measurement of an objects direction and speed is ____.

• Velocity

• Motion

• Position

Simple and compound machines.

• Simple machines have one or no moving parts.

• Compound machines have two or more simple machines together.

Simple machines

Lever, Wedge, Pulley, Screw,Wheel and Axle and Inclined plane

Multiple Choice

What machine is in the picture?

• Inclined plane

• Lever

• Pulley

Multiple Choice

What machine is in the picture?

• Lever

• Pulley

• Screw

Multiple Choice

What machine is in the picture?

• Inclined plane

• Wheel and axle

• screw

Multiple Choice

What machine is in the picture?

• Lever

• Wedge

• Pulley

Multiple Choice

What machine is in the picture?

• Inclined plane

• screw

• wheel and axle

Multiple Choice

What machine is in the picture?

• Inclined plane

• Pulley

• Lever

Chemical and Physical change

• A Chemical change is when you change the chemical in an object and it's irreversible.

• A physical change is when you change how the look of a material.

Multiple Choice

Baking bread is a ____ change.

• physical

• chemical

Multiple Choice

Breaking a glass is a ____ change.

• physical

• chemical