Review Grade 5

Review Grade 5

Unit and lessons we learned last year

• Energy and motion

• Energy transfer

• Natural resources in the environment

• Earth and its changing features

• Earth quake

• Structure and function of living things

• Information processing and transfer

Energy and motion

• Energy is the ability to do work.

• Motion is when object change position.

• Position is the object location.

• Speed is how fast or slow an object moves.

• Velocity is speed and direction of an object.

  
  

• Acceleration is when an object speed up,slow down or change direction.

• All of have their own units for example Energy is measured in Joules, Speed is measured in meters/seconds , position in meters or cm.

Forces

• Forces are push and pull

• Force can cause object to move, stop, change direction.

• The unit of force is Newtons.

Balanced and unbalanced forces

• One object have many forces acting on it.

• Forces can be balanced or unbalanced.

Multiple Choice

What is speed?

• What is the position of an object.

• How fast or slow an object move.

Multiple Select

Acceleration is changed of speed or direction?

• True

• False

Open Ended

What are forces?

Multiple Choice

The following picture show balanced forces

• Yes

• No

Speed and energy

Energy and motion

• Energy is the ability of an object to do work.

• Stored energy/ potential energy

• Energy of motion/ kinetic energy

Energy transfer in collision

What is collision?

• When two or more objects hit each other with a force.

• Inertia: Is the tendency of an object to stay in motion or stay in rest until force is acted on it.

Multiple Choice

Energy is

• How fast or slow something moves

• Ability of an object to do work

Multiple Choice

What is stored energy called?

• Potential

• Kinetic

Multiple Choice

When your car suddenly stop you jerk forward this is due to

• Motion

• Force

• Inertia

Open Ended

What is collision?

Energy transfer 

Types of energy 

• Stored (Ex: Chemical, nuclear)

• Motion ( Electrical, thermal, sound, light)

Sound energy 

• Sound is made by vibrations.

• These particles move back and forth. 

Medium

• Sound needs a medium (particles ) to travel.

• Sound travel fastest in solids, then liquids and slowest in gas. 

• Sound does not travel in space because there is vacuum (no particles) in spcace.

Light energy 

• Biggest source of light is Sun.

• Electromagnetic specturm

Electricity 

• Electric current is the movement of electric charges 

• Conductor are material that let electricity pass through it.

• Insulator are material that does not allow electricity to pass through it. 

Electric circuit 

• Electric circuit components 

• Circuit diagram 

Series and parallel circuit 

Electromagnet 

• Magnet can be made using electricity. 

• They are called electromagnet. 

Heat 

• Heat is the movement of energy from warm object to cooler objects. 

Method of heat transfer 

• Conduction 

• Convection 

• Radiation 

Multiple Choice

Heat is movement of energy from

• Cold to hot

• Hot to cold

Multiple Choice

The biggest source of light is

• Sun

• Bulb

Multiple Choice

Sound is made by

• Position of object

• Vibration of object

Open Ended

Sound cannot travel in space because?

Multiple Choice

Electric circuits are

• Series and straight

• Series and parallel