Science 1 Gr 10

1. Laws of planetary motion was stated by .................

• Newton

• Joule

• Ohm

• Kepler

2. According to the Kepler, the orbit of a planet is ................

• Circular

• Rectangular

• Ellipse

• Traingular

3. 3. If an object weighs around 60 kg on the surface of the earth, its weight on the surface of the moon will be .............. kg.

• 10

• 6

• 20

• 100

4. 4. Metals are placed in ........... block of the periodic table.

• s

• p

• d

• f

5. 5. Non metals are placed in the ............. block of the periodic table.

• s

• p

• d

• f

6. 6. Atomic radius..................... down the group.

• Increases

• Decreases

• Remains the same

7. 7. Metallic character...................... acrosses a period.

• Increases

• Decreases

• Remains same

Law of gravitation was given by ..................

• Newton

• Ohm

• Kepler

• Joule

........................ are written on the left hand side in the chemical equation.

• Reactants

• Products

• Catalyst

In ............ reaction , heat is released

• Exothermic

• Endothermic