Forces Revision Flashcards
Learn forces for home learning Science
How do you calculate weight?
Weight is Mass X Gravitational Field Strength.
Mass Divided by ______ = Density.
Volume.
Speed in metres per second is calculated by ______ Divided by ______.
Distance in metres Divided by Time in seconds.
Time Is ______ Divided by ______ .
Distance Divided by Speed.
Distance = ______ X ______ .
Time X Speed.
In a Distance Time Graph, what does the decline of the Distance value mean?
The subject of the graph is moving backwards.
What is a Force?
A force is a push, pull or twist.
What is Tension?
A stretching force. This is what makes a rope taut, and a tug of war relies on it.
What is Friction?
A force between two surfaces rubbing against each other. This can cause the to warm, wear, and slow down.
Name a use of Friction.
You could have had: providing cars with traction, giving shoes grip so you do not fall over, being able to hold items, rubbing your hands together to keep yourself warm, and more answers I can’t think of 🙄.
😮Name a force that helps skydivers NOT DIE when skydiving
🎒
👖
Air resistance.
Name the meaning of Equilibrium.
Balance. If something is in equilibrium it is balanced.
What is the difference between Mass and Weight?
Mass varies depending on how heavy something is, and can be measured using scales. Weight is a force, and can be measured using a Newton meter. Weight depends on two factors, mass and Gravitational Field strength. Mass does not depend on any other factor.
What does it mean to be streamlined?
If you are streamlined you are usually curved at the front and do not have many things jutting out. Being streamlined means you move through water (and air) more quickly.
What is thrust?
A pushing force caused by an engine.
