physics 1

Question 1

What is the SI unit for mass

Answer 1

Kilogram

Question 2

What is the SI unit for legnth

Answer 2

Metre

Question 3

What is the SI unit for time

Answer 3

Second

Question 4

What are some objects used to measure length

Answer 4

1. Ruler
2. Vernier Caliper
3. Measuring Tape

Question 5

What are some objects used to measure time

Answer 5

1. Stopwatch
2. Pendulum Swing

Question 6

Density formula

Answer 6

mass divided by volume

Question 7

Volume formula

Answer 7

length x width x height

Question 8

How to find the density of a regular object

Answer 8

Multiply its length x width x height to get the volume.
Use an electronic balance to find the mass

Question 9

How to find the density of a irregular object

Answer 9

Pour a certain amount of water in a Eureka Can. Measure this amount. Then, drop the irregular object gently into this water. Now, subtract the

Question 10

What do single - celled organisms and animals have in common in terms of their movement

Answer 10

Most single-celled creatures,
and larger animals, move
about as a whole.

Question 11

What do fungi and plants have in common in terms of their movement

Answer 11

They both don’t move their whole body. Instead, they only move certain parts.

Question 12

What is locomotion?

Answer 12

Locomotion is the movement of an
organism from place to place

Question 12

What is sensitivity

Answer 12

Sensitivity is the ability of
living organisms to respond
to stimuli.

Question 12

What is the symbol equation for respiration?

Answer 12

C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O

Question 13

What is a stimuli or stimulus

Answer 13

A stimulus is a
change in the external or
internal environment of an
organism.

Question 14

What is phototropism

Answer 14

The movement of the leaves of the plants in order to search for and absorb light energy.

Question 15

What is geotropism

Answer 15

The movement of the roots of the plants in the direction of gravity in search of water and nutrients

Question 16

What is the difference in sensitivity between plants and animals

Answer 16

Plants respond to changes in their environment or stimuli much slower than animals do

Question 17

What is the difference between how single - celled organisms and multicellular organisms grow

Answer 17

Bacteria and single-celled creatures increase in size. Many-celled organisms increase the number of cells in their bodies

Question 18

What is the difference between how single - celled organisms and multicellular organisms reproduce

Answer 18

Multiceullar organisms make offspring by using the process of production. Single-celled organisms and bacteria simply keep dividing into two