Which of the following are ways to measure movement?
Direction, distance, speed
Prediction, time, speed
Direction, time, prediction
Distance, time, speed
A force that happens when an object rubs another object is called ____________
Gravity
Magnetism
Friction
A child pushes a box around the room. (This is an example of ______________.)
Unbalanced forces
Chemical energy
Potential energy
Balanced forces
Cooper designs and builds a toy car and is about to test the speed of the car bay pushing it down a ramp. What tools should he use to measure the speed of the toy car?
A measuring cup and a scale
A ruler and a scale
A stopwatch and a ruler
A scale and a stopwatch
Balanced forces cancel each other out when acting on an object.
True
False
Hitting a nail with a hammer is a _____________.
Crash
Strike
Push
Pull
A force is a ___________________.
Pushing
The amount of gravity between two objects
Push or a pull
A pull between two objects
_________________ forces act on an unmoving object.
Balanced
Unbalanced
An object will have a change in motion when the forces acting on it are __________________.
Equal
Not equal
__________________ is necessary to move a car compared with a bicycle.
Less force
More force
The same force
No force
Objects can only move on a straight line.
True
False
Motion is the process of change in an objects ______________.
Speed
Distance
Position
Movement
Two children are holding one end of a rope each. They pull on the rope in opposite directions. The rope is not moving. What conclusion can be made about the forces that the children apply on the rope?
Forces are balanced. Children have same amount of strength.
Jacob is walking a small dog and a big dog. Suddenly, both dogs pull on opposite directions. Which direction will Jacob be pulled?
Towards the bigger dog
Towards the smaller dog
Towards the dog that applies more force
In the opposite direction of the dog that applies more force
The forces that make an object move are called __________________ forces.
Unbalanced
Balanced
Some kids played racing three toy cars. Each one started at the same time. The following drawing shows the end of the race.
All had same speed.
Car B
Car C
Car A
