Distance/Time/Speed
A common unit of measurement for Speed is?
Km/h, m/s or cm/s
What is Velocity?
speed in a given direction
When an object speeds up, and covers more distance in shorter time it has…
Accelerated
Force is any __________ or __________ on an object.
Push or pull
What is the equation associated with Newton’s second law?
Force = Mass x Acceleration
The formula to calculate Speed is?
Speed = Distance/Time
Is Velocity a scalar or vector quantity?
Vector as it includes a direction
How is Acceleration calculated?
Change in velocity / Time (or final Velocity – initial Velocity / Time)
What is the full name of the English Physicist and Mathematician to first describe the force of gravity?
Sir Isaac Newton
What is Newton’s third law?
For every action force there is an equal and opposite reaction force.
How do you measure Displacement?
A straight line measurement from your starting point, to your finishing point.
What is the formula to calculate Velocity?
Velocity = Displacement/time
What is the unit of measurement for acceleration?
m/s2
What is the difference between ‘weight’ and ‘mass’?
mass is the amount of matter in an object, whereas weight is the force exerted on an object by gravity
A man (without his seatbelt on) is thrown out of a car that crashes into another object, what law is this an example of?
Newton’s first law – an object will remain in motion or at rest unless acted on by another force.
What does a flat line on a position-time graph represent?
No movement (stationary position)
What is the velocity of a car that travels 26km south in 1.5 hours (answer to 2 decimal places and include correct unit of measurement)?
17.33km/h south
What does this graph represent in relation to acceleration and position?
An object is moving closer and decreasing in speed (decelerating)
How much does Jessica weigh (N) on Mars, if Mars has a gravitational field strength of 3.7N/kg, and Jessica’s mass is 58kg?
214.6N
What force is required to accelerate a 500kg car 5m/s2?
2500N
Andrew ran 6km in 30 minutes, and Hayden ran 8km in 1 hour. Who ran faster? And what was their speed in km/hr?
Andrew (12km/h)
If Jordan rides her bike 3km North, 1km West, 8km south and 1km east, over 2 hours. What is her displacement?
2.5km/h South
A meteoroid changed velocity from 1.0km/s to 1.8km/s in 0.03 seconds. What is the acceleration of the meteoroid?
26.67 m/s2
Inertia is the tendency of an object to…
resist changes in its state of motion (either remain in motion or remain at rest unless acted on by another force).
What force does a wall apply to a 1000kg car to bring it to a complete stop in 1 second, from 20m/s?
20,000N