Speed, Velocity and Acceleration
What is the definition of speed?
How fast an object is moving.
Which of Newton's laws is also known as the law of inertia?
1st Law
What happens to weight as gravity increases?
It increases.
What can be transferred partially or completely during a collision?
Momentum
Is 100 miles per hour scalar or vector?
Scalar
An object slowing down is which type of acceleration?
Negative
It is easier to push a basketball than a bowling ball with the same amount of force because of which of Newton's laws?
2nd Law
The acceleration due to gravity of the Moon is 1.62 m/s2. What is the mass of a 10 kg rabbit on the moon?
10 kg
This type of collision is caused when two objects collide and bounce off of each other.
Elastic collisions
What two motions combine to cause orbiting?
Object moving in a straight line and the gravity of an object.
What is the velocity of an object that travels north 100 km in 5 seconds?
20 km/s north
A 500 kg car hits an 40 kg stop sign with 4000 Newtons of force. How much force does the stop sign apply to the car?
4000 Newtons
What are the two parts of the law of universal gravitation?
Gravity increases as mass increases
Gravity decreases as distance increases
What is the law of conservation of momentum?
Momentum cannot be created or destroyed, it can only be transferred.
Air resistance depends on these 3 things.
Size, Speed, Shape
An object going 500 m/s comes to a complete stop in 5 minutes. What is the acceleration of the object?
100 m/s/min
In the formula for momentum, momentum is represented by which letter?
p
What affects gravity more: mass or weight?
Mass
What happens to kinetic energy during a fully elastic collision?
It isn't lost
What is the difference in the relationship of gravity and mass and the relationship of gravity and weight?
Mass affects gravity, gravity affects weight
During a 5 minute experiment three objects were compared by velocity. Object A is traveled at a constant velocity of 200 m/s east, Object B started at 10 m/s east and is now traveling at 50 m/s east and Object C started at 140 m/s east and is now traveling 175 m/s east. Rank the objects from highest acceleration to lowest acceleration.
B, C, A
400 Newtons of force is applied to a 10 kilogram object. What is its acceleration?
40 km/s2
The flow of water from high tide to low tide is called?
Ebb Tide
A 20 kg object moving at 10 m/s collides with a 10 kg object. After the collision, the 10 kg object is moving at 5 m/s. How much momentum was transferred to the second object?
150 N
Rank the acceleration of gravity of these planets from smallest to largest: Saturn, Neptune, Uranus, Earth
Uranus, Earth, Saturn, Neptune