Distance & Displacement
Speed and Velocity
Acceleration
Types of Force
Calculating Force
100
Which term describes how far an object has traveled?
distance
100
Does speed or velocity care about the direction of the motion? Which one?
Velocity
100
What is the acceleration of an object that starts at rest and is going 30 m/s after 10 seconds?
3 m/s2
100
How did we define force in class?
A push or a pull
100
When you increase the net force acting on an object, what happens to the acceleration?
Acceleration will increase
200
Which term describes how much an object has changed its position?
displacement
200
What is the speed of a dog that runs 15 meters in 3 seconds?
5 m/s
200
What is the acceleration due to gravity acting on an object as it falls to the Earth?
9.8 m/s2
200
What force causes this apple to fall to the ground?
Gravity
200
When you increase the mass of an object, what happens to the acceleration?
Acceleration will decrease
300
A dog walks 20 feet east, pauses, then walks another 20 feet east. What is his total distance?
40 feet
300
What is the velocity of a car that drives 20 meters north in 5 seconds?
4 m/s North
300
Will a balanced or unbalanced force cause an object to have acceleration (change its speed)?
Unbalanced force
300
What resistive force is exerted on the race car by the ground?
Friction
300
An object experiences a friction force as it is traveling to the right. What direction is the friction force acting in relative to the motion right?
Left (opposite of motion)
400
A man walks 2 miles west to the library, then walks 6 miles east to the store. What is his displacement?
4 miles East
400
What is the velocity of a car that drives 20 meters West in 4 seconds?
- 5 m/s (or 5 m/s West)
400
What is the acceleration of a dog that starts running at 20 m/s, and after 5 seconds has slowed down to a speed of 10 m/s?
- 2 m/s2
400
What force is the man exerting on the box when he pulls it with a non-slack rope?
Tension
400
How much force is required for a 15 kg object to accelerate at 3 m/s2?
45 N
500
What is the object's displacement from 0 seconds to 4 seconds in the position vs. time graph below?
+ 2 m
500
What is the velocity of the object at 10 seconds?
2 m/s
500
What is the acceleration of the object from 5 seconds to 7 seconds in the velocity vs. time graph below?
2.5 m/s2
500
What force prevents the poodle from passing through the exercise ball?
Normal
500
What is the magnitude of the force of gravity acting on a 15 kg dog?
147 N