DENSITY
This is the formula used to calculate density.
Mass ÷ Volume?
The turning effect of a force is called this.
What is a moment?
The energy stored in a raised object is this.
What is gravitational potential energy?
This quantity has only magnitude.
What is a scalar?
The slope of a distance-time graph gives this.
What is speed?
These are two possible SI units for density.
What are kg/m³ and g/cm³?
The formula for force.
What is Force = Mass × Acceleration?
The formula for kinetic energy.
What is KE = ½mv²?
This quantity has both magnitude and direction.
What is a vector?
A flat (horizontal) line on a distance-time graph shows this.
What is no motion (object is stationary)?
The volume of a regular solid is found using this formula.
What is Volume = Length × Width × Height?
The unit for force.
newton (N)?
Work is equal to force multiplied by this.
What is distance?
: Give three examples of vector quantities.
What are force, velocity, and acceleration?
The slope of a velocity-time graph gives this.
What is acceleration?
If mass is 100g and volume is 20cm³, what is the density?
What is 5 g/cm³?
The principle of moments states this condition for balance.
What is the sum of clockwise moments equals the sum of anticlockwise moments?
The unit of power.
What is the watt (W)?
This type of quantity describes speed.
What is a scalar?
The area under a velocity-time graph gives this.
What is displacement?
This method is used to find the volume of an irregular object.
What is the displacement method (water displacement)
If a 10 N force acts 2 m from a pivot, the moment is:
What is 20 Nm?
Total mechanical energy is the sum of these two types of energy.
What are kinetic energy and potential energy?
This is the difference between distance and displacement.
What is distance is scalar, displacement is vector?
A constant negative slope on a velocity-time graph means this.
What is uniform deceleration?