Year 7 Forces Flashcards
1
Q
What is a force
A
A force is a push, pull or a twist
2
Q
What is a contact force?
A
A force that acts when you touch objects together.
3
Q
Examples of a contact force
A
Friction and air resistance
4
Q
How do you measure forces
A
Newtons
5
Q
State the equation to calculate speed
A
Speed = Distance divided by time
6
Q
What is an independent variable
A
Things that we change
7
Q
What is a resultant force.
A
If one force is acting on each other that that mean it is the resultant force
8
Q
Why would you use newtons?
A
One Newton is the force needed to accelerate 1 kg of mass
9
Q
Why would you use kilograms?
A
Kilograms or great for measuring things that can be lifted by people
10
Q
Why would you use a stopwatch?
A
You would use a stopwatch to help you measure times in practicals?
