Chapter 2 force work and energy

What is solar energy

• The energy that we get from sunlight is called solar energy.

• The energy that we get from water is called solar energy.

• the energy we get from wind is called solar energy.

• the energy that we get from heat

Tags

Science

Energy is obtained from the heat inside the Earth

Trolley is a example of -----------.

Tags

NGSS.MS-PS2-2

Ram's father is a wood cutter, he uses a axe to chop the wood.

The axe is a example of which simple machines?

• Pulley

• Wedge

• Screw

• inclined plane

scissor is a example of which type of lever

• Second class lever

• first class lever

• third class lever

Riya is going for trekking in a hill with a steep road and Priya is going for trekking in a hill with a winding road . who can go easily ?

• Riya

• Priya

Answer explanation

Because less effort is needed to go up the hill with a winding road

To cook food you need ---------------- energy.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Choose the 4 types of effects of force

• Force can move a object

• Force can stop a moving object

• force can change the direction in which an object is moving

• Force can change a shape of an object

• force can make a object fly

Tags

NGSS.MS-PS2-2

which is the principle of 2nd class lever

• f-l-e

• f-e-l

• l-f-e

• e-f-l

Which is an example of a lever?

• seesaw
• skates