Working Scientifically And Forces Yr 7 Flashcards
What is the primary equipment used to measure force?
A force sensor or force gauge.
True or False: A Newtonmeter is a common unit for measuring force.
True.
Fill in the blank: The unit of force in the International System of Units (SI) is the ______.
Newton.
What does a force diagram represent?
A force diagram represents the forces acting on an object.
What is the purpose of a free-body diagram?
To show all the external forces acting on a single object.
Multiple Choice: Which of the following is NOT a type of force? A) Gravitational B) Frictional C) Magnetic D) Velocity
D) Velocity.
What does it mean if the forces acting on an object are balanced?
The object will remain at rest or move at a constant velocity.
True or False: An object will accelerate if the forces acting on it are balanced.
False.
What is the formula for calculating force?
Force = mass × acceleration (F = ma).
Fill in the blank: A spring scale is used to measure ______.
weight or force.
What does a net force of zero indicate?
That the object is in equilibrium.
Multiple Choice: Which diagram would you use to analyze the forces on a book resting on a table? A) Free-body diagram B) Circuit diagram C) Flowchart D) Bar graph
A) Free-body diagram.
What is the relationship between mass and weight?
Weight is the force exerted by gravity on an object’s mass.
True or False: A force can be represented as a vector.
True.
What is the significance of the direction of force in a force diagram?
It indicates the direction in which the force is acting.
Fill in the blank: In a force diagram, arrows represent ______.
the magnitude and direction of forces.
What happens to an object if the forces acting on it are unbalanced?
The object will accelerate in the direction of the net force.
Multiple Choice: Which unit is used to measure mass? A) Newton B) Kilogram C) Joule D) Meter
B) Kilogram.
What is a common tool used to measure weight?
A scale.
True or False: Frictional force always acts in the direction of motion.
False.
What is the effect of increasing mass on the gravitational force experienced by an object?
The gravitational force increases.
Fill in the blank: The force of gravity on Earth is approximately ______ m/s².
9.81.
What is the purpose of using a calibration weight?
To ensure that measurement equipment is accurate.
What does it mean for an object to be in static equilibrium?
The object is at rest and all forces acting on it are balanced.
