Newtons First Law
According to Newton's first law of motion, an object at rest tends to ________?
Stay at rest unless acted upon by an external force
Newton's second law of motion states that the acceleration of an object is directly proportional to the ________ acting on it.
Force.
According to Newton's third law of motion, for every action, there is an equal and opposite ________?
- Reaction.
Does Miss Pagett have any pets?
Yes or No
No
Is a car travelling at 80km (constant speed) an example of a balanced or an unbalanced force?
Balanced
What is the SI unit of force?
Newton (N)
What is the human body’s largest organ?
Skin
Describe what happens if you are riding a skateboard and hit something (like a curb) with the front wheels.
Your body will keep moving forward and fly off your skateboard since the curb only stops the board, not yourself.
What is the formula for Newton's second law of motion?
( F = ma ) (Force equals mass times acceleration).
When you push against a wall with a force of 10 N, the wall pushes back with a force of:
a) 0 N
b) 5 N
c) 10 N
d) 20 N
c) 10 N
What element does the chemical symbol Au stand for?
Gold
What is the chemical formula for water?
H₂O
What is the pH scale used to measure?
The acidity or basicity of a solution.
What is the more popular name for the portrait officially titled “La Gioconda,” painted in Florence in 1503?
The Mona Lisa
What is another name for the first law of motion?
Law of inertia.
A 10 kg object is subjected to a net force of 50 N. What is its acceleration?**
a) 5 m/s²
b) 10 m/s²
c) 0.2 m/s²
d) 50 m/s²
a) 5 m/s²
Explanation: Using the formula a = F / m,
the acceleration a = 50 N/10KG= 5m/s2
a swimmer pushes water backward with their hands, the water pushes the swimmer:
a) Backward
b) Forward
c) Downward
d) Sideways
b) Forward
What is the smallest planet in our solar system?
Mercury
What is photosynthesis?
Photosynthesis is the process by which green plants and some other organisms use sunlight to synthesise foods with the help of chlorophyll
How many bones are in the human body?
206
What was the first book published by Jane Austen?
Sense and Sensibility
Which of the following scenarios best illustrates Newton's First Law?
a) A ball rolling on the ground gradually comes to a stop.
b) A car accelerates when the driver presses the gas pedal.
c) A book resting on a table stays in place until someone pushes it.
d) A swimmer pushes water backward to move forward.
c) A book resting on a table stays in place until someone pushes it.
Using Newton’s laws explain why heavier objects require more force than lighter objects to move or accelerate them?
Something with more mass moving at the same acceleration as a lighter object would require more force to change its speed or change its direction. Our formula F=m x a is derived from Newton’s second law.
When you jump off a small boat into the water, the boat moves backward. Explain why this happens using Newton's third law
When you jump forward off the boat, you exert a force on the boat in the backward direction.
According to Newton's Third Law, the boat exerts an equal and opposite force on you, which pushes it backward.
What is the highest-grossing Broadway show of all time?
The Lion King
Explain why oil and water do not mix.
Oil and water do not mix because oil is non-polar, while water is polar. Polar molecules (like water) are attracted to other polar molecules and repel non-polar molecules (like oil).
Which is the main gas that makes up the Earth's atmosphere?
Nitrogen
Which two countries have the longest shared international border?
Canada and the U.S.
Describe inertia when a car breaks?
When a car suddenly brakes, passengers tend to lurch forward. This happens because of inertia. The passengers' bodies were in motion, and when the car abruptly stops, their bodies want to continue moving forward due to inertia.
a car has a mass of 1000 kg. If a net force of 2000 N is applied to the car, what is its acceleration?
Using the formula a = F / m
a = 2000 N/ 1000 KG
a= 2m/s2Describe the forces involved when a rocket launches. Use Newton's Third Law in your explanation.
When a rocket launches, it expels gas out of its engines downward. According to Newton's Third Law, the action force of the gas being expelled downward creates an equal and opposite reaction force that pushes the rocket upward.
What is the capital of India?
New Delhi
What does DNA stand for?
deoxyribonucleic (dee-OK-see-ri-bo-new-klee-ik) acid.
What is the function of red blood cells in the human body?
Red blood cells transport oxygen from the lungs to all parts of the body.
How many bones do sharks have?
Zero!