Pop out
No Messages

# Conestoga Science Chapter 2 Study Guide

 Why is it necessary to wear a seat belt to hold you in place if you are riding in a car that stops suddenly?If not, you will continue moving forward at the car's original speed.
1/25

Order by

#### Definitions

Why is it necessary to wear a seat belt to hold you in place if you are riding in a car that stops suddenly? If not, you will continue moving forward at the car's original speed.
Can an object be in motion if the net force acting on it is zero? Explain. Yes, constant speed without friction
Two cars are trafveling along the same road at the same speed, but different velocities. Explain. Opposite directions at the same speed.
A skater in a parking lot. Can she have a constant speed and changing velocity? Can she have a changing speed and constant velocity? Explain your answer. Yes
No
You can be changing direction at constant speed to produce changing velocity. Any change in speed results in a change in velocity.
A truck travels to and from a stone quarry located 2.5 km to the east. What is its distance? What is its displacement? Distance= 5.0 km
Displacement= 0
At the same speed, a bowling ball is harder to stop than a soccer ball because the bowling ball has greater...... mass (inertia)
In the equation a=(vf-vi)/t, Vf stands for what? Final velocity
If the forces acting on an object at rest are ________________________, the object wll remain at rest. Balanced forces
When calculating acceleration, to find the change in velocity, you subtract the _____________________________ velocity from the __________________________________ velocity. Initial
Final
As a car slows down approaching a red traffic light its_______________________ is negative. acceleration
An object changing its speed from 12 m/s to 5 m/s is undergoing what kind of acceleration? Negative
Acceleration occurs when an object changes its_______________________ or ________________________ or both. Velocity (speed)

Direction
What does the slope of the distance-time graph give? Speed
Velocity is..... The speed and direction with which an object moves.
Distance is.... a measure of how far an object has moved.
What is another name for Newton's first law of motion? Law of inertia
Inertia varies depending on what? The mass of an object
What does a horizontal line on a velocity/time graph show? zero acceleration
Acceleration is..... The rate of change of velocity
Why does an object moving at a constant speed have velocity? Because it's changing direction.
Relate distance, speed, and time in an equation. speed=distance/time s=d/t
3 m/s north is an example of what? Velocity
Motion is...... a change in position.
If you ride your bicycle down a straight road 2 miles and then turn around and ride back, your distance is __________________________ your displacement. greater than
Equation for acceleration a=vf-vi/t

### First Time Here?

Welcome to Quizlet, a fun, free place to study. Try these flashcards, find others to study, or make your own.