Random
Newtons Laws
Force
Energy
Random
100
What are the units for acceleration?
m/s/s or m/s2
100
Who stated the laws of motion?
Isaac Newton
100
The unit for Force?
Newtons (N)
100
"Moving energy" is called?
Kinetic
100
Calculate how much force was applied to a 20kg object accelerating at 20m/s/s?
F = m x a
F = 20 x 20
F = 400N
200
What is the name of the alternate dimension in Netflix’s Stranger Things?
The upside down
200
How many laws of motion are there?
3
200
Calculate the force needed to give a 1000 kg spacecraft an acceleration of 4 m/s/s.
4000N
200
"Stored energy" is called?
Potential
200
Which musician is the most nominated woman at the Grammy awards?
Beyonce
300
An iron transforms electrical energy into thermal energy, or heat is an example of what?
Energy transformation
300
What is Newtons 3rd Law?
For every action, there is an equal and opposite reaction.
300
Calculate the mass of a motorbike that has an acceleration of 10m/s/s when a net force of 1000N is applied to it?
m = f/a
m = 1000 / 10
m = 100kg
300
Write down 4 different types of energy?
Any of the following: Thermal, heat, kinetic, potential, gravitational potential, electrical, mechanical, nuclear, light, sound.
300
Name the 3 actors in Marvel with “Chris” as their first name
Chris Evans, Chris Hemsworth, Chris Pratt
400
What is the Law of conservation of energy?
Energy CANNOT be created from nothing, or destroyed.
400
What is Newtons 2nd Law?
Force = mass x acceleration
400
F=m x a
Rearrange equation to calculate acceleration =
a = F / m
400
If energy passes from one object or place to another without changing form, what is this called?
Energy transfer
400
If an engine supplies a force of 3100 N, causing a car to accelerate by 26 m/s2, what is the mass of the car?
m = f / a
m = 3100 / 26
m = 119kg
500
Which pop singer’s real name is Robyn Fenty?
Rihanna
500
What is Newtons 1st Law?
Law of inertia. A body at rest will remains at rest or, if it is in motion stays in motion, until it is acted on by an unbalanced force.
500
Object 1: Force 20N + Mass 50kg
Object 2: Force 20N + Mass 100kg
Which will have the higher acceleration, and what is it?
Object 1 will have the greatest acceleration.
a = f / m
a = 20 / 50 = 0.4 m/s/s
Lighter objects accelerate more than heavier objects with the same given force
500
Write a flow diagram for the energy transformation occurring?
GPE -> kinetic -> Elastic -> Kinetic
(also heat energy + sound energy as waste energy)
500
Energy efficiency = (bounce height / original height) x 100%. If I drop a ball from 1.7m and it bounces to 1.2m. What is its energy efficiency?
Energy efficiency = (1.2 / 1.7) x 100%
= 70.6%