Force, Work and Energy 2

A __________ looks like a nail with grooves cut into it

• screw

• wedge

• inclined plane

• lever

__________ traps Sun’s energy to make food

• plants

• animals

The use of bowling machines to throw cricket ball faster is an example of ​ (a)   force

• mechanical
• Magnetic
• Gravitational

A ​ (a)   force pulls all objects towards the centre of Earth

• gravitational
• Magnetic
• Wedge

A metal bar attracts iron nails due to the ​ (a)   force acting on it

• magnetic
• Mechanical
• Gravitational

A crane made of many small machines is an example of (a)   machin

• complex
• Magnetic
• Lever

A bottle opener is an example of a (a)   which is used to open objects

• lever
• Atomic
• Wedge

A​ (a)   with a sharp edge is formed by two planes inclined to each other.

• wedge
• pulley
• Lever

The splitting of atoms releases the ​ (a)   energy which generates electricity

• atomic
• heat
• solar

A push or pull is called ____________________

• Force

• direction

• gravitational

• position