Which control(s) can change the acceleration of a car?
The gas pedal, brake pedal, and steering wheel
100
On the moon, what is the mass of an object that is 10 kg on Earth?
10 kg
100
Ms. Kyper will show you a diagram of a box at rest on an inclined plane. What force does vector B represent?
The force of gravity
100
If an object is in static equilibrium, what is it doing?
Nothing (not moving)
100
When an object is in equilibrium, what is the net force?
Zero
200
A model rocket, starting with a speed of 10 m/s, fires its second engine to reach a top speed of 40 m/s in 3.5 s. What is the rocket’s average acceleration?
8.6 m/s2
200
On the surface of planet X, the acceleration due to gravity is - 16 m/s2. What is the weight of a 6.0 kg mass located on the surface of planet X?
- 96 N
200
A rock is falling without air resistance. What force(s) is/are acting on the rock?
Weight (force of gravity)
200
Ms. Kyper will show you a picture of some boxes. Which one is in equilibrium?
2
200
What do unbalanced forces produce?
Acceleration
300
A BMW sports car has an initial speed of 0 m/s and accelerates at 15 m/s2. What is the car’s final speed after 5 seconds?
75 m/s
300
A container of rocks with a mass of 65.0 kg is brought back from the Moon’s surface where the acceleration due to gravity is - 1.63 m/s2. What is the weight of the container of rocks on the Earth’s surface?
- 650 N
300
What direction does friction always act in?
Opposite to an object's motion
300
Ms. Kyper will show you a picture of a box. In what direction do you need to put a force in order to put the box into equilibrium?
To the left
300
A net force of 25 N is applied horizontally to a 10-kilogram block resting on a table. What is the magnitude of the acceleration of the block?
2.5 m/s2
400
Ms. Kyper will show you some graphs. Which one best represents the motion of an object whose speed is increasing (not constant)?
3
400
A penny is dropped from a tall building. After 1 second, what is the penny’s speed?
10 m/s
400
Ms. Kyper will show you a diagram of a box at rest on an inclined plane. Which vector best represents the direction of the normal force acting on the box?
C
400
Three forces act on an object that is in equilibrium. If the 1st is a 5 N force north, and the 2nd is a 2 N force south, then what must the 3rd force be?
3 N south
400
If the sum of all the forces acting on a moving object is zero, what will the object do?
Continue moving with constant velocity
500
Ms. Kyper will show you some graphs. Which pair of graphs represents a constant speed?
1
500
What happens to an object's speed and acceleration as an object falls?
Its speed increases and its acceleration stays the same
500
Ms. Kyper will show you a diagram of a box at rest on an inclined plane. Which vector best represents the frictional force acting on the box?
D
500
Coyote wants to catch Road Runner and so he compresses a spring! The spring has a force of 13 N pushing on Coyote to the right. With what force does the 88 kg Coyote need to push to remain at rest?
- 13 N
500
Ms. Kyper will show you a diagram of a box on a frictionless horizontal surface. If the magnitude of force F1 is greater than the magnitude of force F2, what is the box doing?